Trusted by 1,340+ Homeowners and Businesses | ★★★★★ Written Guarantee on Every Job
GARAGE DOOR REPAIR DONE RIGHT — Clearfield, UT
Click Here to Call (888) 670-9331

Garage Door Repair
in Clearfield, UT

Diagnosed right. Fixed right. EZ Open Garage Doors identifies the specific fault, uses the correct part for your specific door, repairs to correct specification, and verifies the complete system before leaving in Clearfield.

Click Here to Call (888) 670-9331
Diagnosis Before Repair
Correct Parts, Not Closest
Balance Test Every Spring Job
Written Guarantee
Garage Door Repair Done Right

Diagnosed Right. Fixed Right. In Clearfield, UT.

You've had a garage door repaired before and it wasn't done correctly in Clearfield. The spring was replaced and the door never felt right afterward in Clearfield, UT. The cable was swapped but no one asked why it snapped in the first place and it snapped again a few months later in Clearfield. The technician re-tracked the door and left without addressing the bent section that caused the derailment in the first place in Clearfield, UT. Or this is your first garage door repair and you're taking the time to find a company that will actually do it right in Clearfield. Either way, you've made a sensible decision in Clearfield, UT. A garage door repair done incorrectly produces a door that fails sooner than it should, operates in a way that damages the components connected to it, and requires a second repair call to fix what the first one missed in Clearfield.

Here is specifically what a rushed garage door repair produces in Clearfield, UT. A spring replaced with an incorrect specification, wrong wire diameter, wrong length, produces a door that's either oversprung or undersprung from the moment the technician leaves in Clearfield. An oversprung door can behave unpredictably under manual operation in Clearfield, UT. An undersprung door puts abnormal load on the opener motor, drive gear, and cables with every single cycle in Clearfield. A cable replaced without identifying why it failed leaves the new cable exposed to the same condition that destroyed the original in Clearfield, UT. An off-track door realigned without correcting the bent track section that caused the derailment will derail again at the same spot in Clearfield. A sensor replaced without first testing whether it was actually misaligned may replace a perfectly good part in Clearfield, UT. Every one of these outcomes is the predictable result of a repair that prioritizes speed over correctness in Clearfield.

EZ Open Garage Doors repairs garage doors throughout Clearfield, UT in Clearfield. Every call starts with a complete door system assessment before any component is recommended for replacement in Clearfield, UT. The specific fault is identified and explained before any work begins in Clearfield. The correct part is selected for the specific door, not the closest part on the truck in Clearfield, UT. The repair is performed to correct specification in Clearfield. The balance test is performed after every spring repair in Clearfield, UT. The complete system is verified before EZ Open leaves in Clearfield. And every repair is backed by a written guarantee in Clearfield, UT. Diagnosed right. Fixed right in Clearfield.

Garage Door Repair Done Right in Clearfield, UT

The urgency of a garage door failure is real in Clearfield. A door that won't close, a spring that's snapped, a car that's trapped, these need to be fixed today in Clearfield, UT. But fast doesn't mean correct, and correct is what determines whether the repair lasts in Clearfield. A spring replaced in 40 minutes with the wrong specification is faster than one done correctly in Clearfield, UT. It's also a door that accumulates premature wear on every connected component from the first cycle and produces a second repair call within months in Clearfield. EZ Open brings both speed and correctness to every call in Clearfield, UT.

Why a Fast Repair Isn't the Same as a Correct Repair in Clearfield

A repair that's done quickly but incorrectly produces a door that fails again in Clearfield, UT. The second failure has the original repair cost plus the new repair cost plus potentially the cost of the secondary damage the incorrect repair produced in Clearfield. A spring wound to the wrong tension for eight weeks before producing an off-track event has cost the homeowner the original spring replacement, the off-track repair, any track damage from operating off track, and potentially a panel repair in Clearfield, UT. The correctly performed repair costs more per hour than the quick patch job in Clearfield. It costs significantly less in total in Clearfield, UT.

What EZ Open Does Differently on Every Repair Call in Clearfield, UT

EZ Open Garage Doors begins every repair call with a complete door system assessment before any component is considered for replacement in Clearfield. The specific fault is identified and confirmed in Clearfield, UT. The underlying cause is identified in Clearfield. The correct part is selected for the specific door in Clearfield, UT. The repair is performed to correct specification in Clearfield. The balance test is performed after every spring repair in Clearfield, UT. The complete system is tested before EZ Open leaves in Clearfield.

The Four Elements of a Correct Garage Door Repair in Clearfield, UT

Correct diagnosis establishes what needs to be repaired in Clearfield. Correct part selection ensures the replacement performs correctly for the specific door in Clearfield, UT. Correct installation ensures the part is installed in a way that produces the intended result in Clearfield. Correct verification confirms the repair produced the intended result before the technician leaves in Clearfield, UT. All four are present on every EZ Open repair call in Clearfield.

Book Your Repair With EZ Open in Clearfield, UT Today

Call EZ Open Garage Doors now for repair in Clearfield. We answer, assess, and repair correctly in Clearfield, UT.

Click Here to Call (888) 670-9331
What a Correct Garage Door Repair Actually Requires

What a Correct Garage Door Repair Actually Requires in Clearfield, UT

Correct Diagnosis — The Foundation of Every Correct Repair in Clearfield

The correct repair for a garage door failure is determined by the specific fault in Clearfield, UT. A door that won't open could have a broken spring, a disconnected trolley, a failed opener component, or a broken cable in Clearfield. Each requires a completely different repair in Clearfield, UT. A repair performed without identifying which of these is the actual cause is a guess in Clearfield. Sometimes the guess is right in Clearfield, UT. When it's wrong, the homeowner pays for the wrong repair and still has the original problem in Clearfield. EZ Open Garage Doors performs the manual release test and complete system assessment before recommending any repair in Clearfield, UT.

Correct Part Selection — Specification Over Brand Name in Clearfield, UT

A replacement spring must be specified for the specific door's weight, height, and cable drum configuration in Clearfield. A replacement cable must be specified for the door's weight and the cable drum's geometry in Clearfield, UT. A replacement sensor must be compatible with the specific opener brand's control board in Clearfield. Correct specification produces a replacement that performs correctly for the specific door in Clearfield, UT. An incorrect specification produces a replacement that's installed but doesn't perform correctly in Clearfield. EZ Open Garage Doors selects the correct specification for every replacement component before any installation begins in Clearfield, UT.

Correct Installation — The Procedure That Determines the Result in Clearfield

A correctly specified spring wound to the wrong number of turns produces a door that's oversprung or undersprung despite the correct spring specification in Clearfield, UT. A cable correctly specified but incorrectly wound into the drum groove miswinds from the first cycle and produces accelerated cable wear in Clearfield. A track straightened without alignment verification may be correctly formed but positioned incorrectly relative to the door panel edge in Clearfield, UT. Correct installation means the correct procedure is followed for every component in Clearfield.

Correct Verification — What EZ Open Checks Before Calling the Job Complete in Clearfield, UT

Balance test where spring work was performed, door holds at halfway position with opener disconnected in Clearfield. Cable seating in both drums verified in Clearfield, UT. Opener full cycle test in Clearfield. Safety sensor beam interruption test in Clearfield, UT. Auto-reverse force test in Clearfield. Travel limit accuracy, door reaching floor and full open position correctly in Clearfield, UT. Manual release function, cord pulls cleanly and door operates manually in Clearfield. Every repair is verified against these standards before EZ Open calls the job complete in Clearfield, UT.

Why Skipping Any Step Produces a Substandard Result in Clearfield

Each step in the repair process creates the conditions for the next step to be correctly performed in Clearfield, UT. Correct diagnosis creates the conditions for correct part selection in Clearfield. Correct part selection creates the conditions for correct installation in Clearfield, UT. Correct installation creates the conditions for the verification to confirm a correct result in Clearfield. Skipping any step removes the foundation for the step that follows and produces a result that's incomplete at best in Clearfield, UT.

Click Here to Call (888) 670-9331
How a Rushed Repair Produces Bigger Problems Later

How a Rushed Repair Produces Bigger Problems Later in Clearfield, UT

A Wrong Spring Spec Strains Every Connected Component in Clearfield

An undersprung door is heavier than the spring counterbalances in Clearfield, UT. The opener motor runs against the uncounterbalanced weight on every opening cycle in Clearfield. The motor draws more current than its design rating in Clearfield, UT. The drive gear meshes against the worm gear under more torque than its design rating in Clearfield. The cables carry more tension than their design specification in Clearfield, UT. All four components accumulate wear faster than they would under correct spring tension in Clearfield. A spring replaced with the wrong specification at $150 to $250 produces $300 to $600 in premature component failures over the following 12 to 24 months in Clearfield, UT.

A Cable Replaced Without Knowing Why It Failed Fails Again in Clearfield, UT

A cable fails for a specific reason in Clearfield. A spring failure that sent a shock load through the cable in Clearfield, UT. A drum groove worn to a sharp edge that was cutting through the cable strands with each winding cycle in Clearfield. An incorrect drum winding from a previous repair that put the cable into contact with the drum flange in Clearfield, UT. A cable replaced without identifying the specific cause goes into the same conditions that failed the original in Clearfield. The new cable begins accumulating the same wear from the first cycle in Clearfield, UT. It fails sooner than the original because the damage condition has been present longer in Clearfield.

A Sensor Swapped Without Testing May Not Be the Actual Problem in Clearfield, UT

The bracket adjustment test takes sixty to ninety seconds in Clearfield. The receiver sensor bracket is adjusted through its complete range of angles while the receiver LED is observed in Clearfield, UT. If the LED becomes solid at any angle, the sensor is functional and was only misaligned in Clearfield. The bracket is locked in the correct position and no sensor replacement is needed in Clearfield, UT. A sensor replacement without this test has a significant probability of replacing a functional sensor that was simply misaligned in Clearfield. That replacement costs $75 to $150 in Clearfield, UT. The bracket adjustment test that would have prevented it takes sixty to ninety seconds in Clearfield.

A Track Straightened Without Checking Alignment Still Scrapes in Clearfield, UT

A track section that's been straightened but positioned slightly too close to the door panel edge produces the same scraping or binding symptom that prompted the repair call in Clearfield. The channel may be correctly formed in Clearfield, UT. The straightening may have been executed correctly in Clearfield. But if the track section is positioned an eighth of an inch too close to the door after straightening, the door panel contacts the channel wall during travel in Clearfield, UT. Alignment verification at multiple points on each vertical section catches this condition before the door is tested in Clearfield.

What EZ Open Does to Prevent Each of These Outcomes in Clearfield, UT

Every EZ Open spring replacement ends with a balance test that confirms the specification is correct before the job is closed in Clearfield. Every cable replacement includes cause assessment and drum winding verification in Clearfield, UT. Every sensor service call includes the bracket adjustment test before any sensor is considered for replacement in Clearfield. Every track repair includes alignment verification at multiple points before door travel is tested in Clearfield, UT. These aren't optional steps in Clearfield. They're the standard for every EZ Open repair in Clearfield, UT.

Click Here to Call (888) 670-9331
The EZ Open Repair Standard

The EZ Open Repair Standard — What Every Job Includes in Clearfield, UT

Complete Door System Assessment Before Any Recommendation in Clearfield

EZ Open Garage Doors assesses the complete door system at the start of every repair call in Clearfield, UT. The failed component in Clearfield. The components adjacent to the failed component that may have been affected in Clearfield, UT. The spring condition in Clearfield. The cable condition in Clearfield, UT. The track and roller condition in Clearfield. The opener in Clearfield, UT. The assessment confirms what failed and what it may have affected before any repair is recommended in Clearfield.

Specific Fault Identified and Explained Before Work Begins in Clearfield, UT

The specific fault is identified through the assessment and explained in plain language before any repair work begins in Clearfield. What failed in Clearfield, UT. Why it failed in Clearfield. What the correct repair involves in Clearfield, UT. What will happen to adjacent hardware if the underlying cause isn't addressed in Clearfield. Price confirmed before any work starts in Clearfield, UT.

Correct Part for Your Specific Door in Clearfield

EZ Open Garage Doors selects replacement parts with the correct specification for the specific door and the specific fault in Clearfield, UT. Springs specified for the specific door weight and height in Clearfield. Cables specified for the specific door weight and drum configuration in Clearfield, UT. Sensors specified for the specific opener brand in Clearfield.

Repair Performed to Correct Specification in Clearfield, UT

Every EZ Open repair is performed to the correct specification for the specific door and the specific component in Clearfield. Springs wound to the correct number of turns in Clearfield, UT. Cables wound correctly into the drum groove in Clearfield. Track aligned to correct gap measurement at multiple points in Clearfield, UT. Hardware tightened to correct specification in Clearfield.

Complete System Verification Before EZ Open Leaves in Clearfield, UT

Balance test where spring work was performed in Clearfield. Cable seating in both drums in Clearfield, UT. Opener cycle test in Clearfield. Safety sensor beam interruption test in Clearfield, UT. Auto-reverse test in Clearfield. Travel limit accuracy in Clearfield, UT. Manual release function in Clearfield. All verified before EZ Open calls the job complete in Clearfield, UT.

Click Here to Call (888) 670-9331
Why Clearfield Homeowners Choose EZ Open

Why Clearfield Homeowners Choose EZ Open for Garage Door Repair in Clearfield, UT

Diagnosis Before Recommendation — Every Call in Clearfield

EZ Open Garage Doors identifies the specific fault through complete system assessment before recommending any repair on every call in Clearfield, UT. The repair performed is the repair needed in Clearfield.

Correct Parts — Matched to the Door, Not Whatever's Closest in Clearfield, UT

EZ Open Garage Doors selects the correct specification for every replacement component before any installation begins in Clearfield. Specification correctness determines how long the replacement performs in Clearfield, UT.

All Major Brands — Residential and Light Commercial in Clearfield

EZ Open Garage Doors repairs and replaces all major residential and light commercial garage door brands throughout Clearfield, UT in Clearfield. Chamberlain, LiftMaster, Genie, Craftsman, Clopay, Amarr, and all other major brands in Clearfield, UT.

Licensed, Insured, and Background-Checked Technicians in Clearfield

Every EZ Open Garage Doors technician performing repair in Clearfield, UT is licensed, insured, and background-checked in Clearfield.

Every Repair Backed by a Written Guarantee in Clearfield, UT

Every EZ Open Garage Doors repair is backed by a written guarantee in Clearfield. If the repair doesn't produce the expected result within the guarantee period, EZ Open returns and addresses it at no additional charge in Clearfield, UT.

Click Here to Call (888) 670-9331
Pricing

Garage Door Repair Cost in Clearfield, UT

All pricing confirmed upfront before work begins in Clearfield.

Sensor realignment in Clearfield$50 to $100
Sensor replacement in Clearfield, UT$75 to $150
Cable replacement — single in Clearfield$100 to $200
Both cables replaced in Clearfield, UT$150 to $275
Spring replacement — single in Clearfield$150 to $250
Spring replacement — both in Clearfield, UT$200 to $400
Off-track repair with cause correction in Clearfield$125 to $450
Opener component repair in Clearfield, UT$75 to $350
Track repair with alignment verification in Clearfield$75 to $500

What Drives the Price in Clearfield, UT

The specific fault and the correct repair procedure for that fault are the primary drivers in Clearfield. A sensor realignment is among the least expensive repairs in Clearfield, UT. A full off-track repair with associated component replacement is among the most involved in Clearfield. Whether one or both springs are replaced affects cost in Clearfield, UT.

Why the Lowest Quote Isn't Always the Best Value in Clearfield

A $99 garage door service call that produces an incorrectly specified spring costs $99 in Clearfield, UT. When the opener burns out from the undersprung load eight months later, the total is $99 plus the opener replacement in Clearfield. When the door comes off track from the unbalanced operation, the total is $99 plus opener plus off-track repair in Clearfield, UT. A correctly performed spring replacement at $150 to $250 produces a balanced door that runs at designed load from day one in Clearfield. The correct repair costs less in total even when it costs more upfront in Clearfield, UT.

Diagnosed right. Correct parts. Verified before we leave. Written guarantee. EZ Open Garage Doors in Clearfield, UT.

Fixed right in Clearfield. Call now in Clearfield, UT.

Click Here to Call (888) 670-9331
Service Area

Serving Clearfield, UT and Surrounding Areas

EZ Open Garage Doors provides garage door repair throughout the entire Clearfield service area.

Downtown Clearfield

Residential & commercial in Clearfield, UT

North Clearfield

Full north-side same-day coverage in Clearfield, UT

South Clearfield

All south-side communities in Clearfield

East Clearfield

East-end homes & properties in Clearfield, UT

West Clearfield

Full west-side coverage in Clearfield

Surrounding Areas

Call to confirm availability in Clearfield, UT

EZ Open Garage Doors' service area extends beyond Clearfield city limits to surrounding communities across the broader Clearfield, UT region. Call to confirm same-day availability for your specific address in Clearfield.

Click Here to Call (888) 670-9331
FAQ

Garage Door Repair FAQs in Clearfield, UT

The balance test is the most accessible self-check in Clearfield. Disconnect the opener using the emergency release cord and manually lift the door to the halfway open position in Clearfield, UT. Release it in Clearfield. A correctly repaired door with correctly specified springs holds its position near the halfway height in Clearfield, UT. A door that rises is oversprung in Clearfield. A door that drops is undersprung in Clearfield, UT. Either result indicates the spring specification or winding wasn't done correctly in Clearfield.
Ask whether they perform a diagnostic test before recommending a repair in Clearfield. Ask whether they identify the cause of a cable or sensor failure before replacing the part in Clearfield, UT. Ask whether they perform a balance test after every spring replacement in Clearfield. Ask whether the complete door system is tested before they leave in Clearfield, UT. And ask whether the repair is backed by a written guarantee in Clearfield. A company performing every step correctly will answer yes to all of these without hesitation in Clearfield, UT.
The balance test disconnects the opener and manually raises the door to the halfway open position in Clearfield. The door is released and observed in Clearfield, UT. A correctly specified and correctly wound spring produces a door that holds its position near the halfway height in Clearfield. Rising means oversprung and dropping means undersprung in Clearfield, UT. The balance test is the only method that confirms the spring specification and winding produced the correct result in Clearfield. Without it, any error goes undetected until it manifests as a component failure in Clearfield, UT.
The new cable goes into the same conditions that destroyed the original cable in Clearfield. If a worn drum groove was cutting through the original cable's strands, the replacement cable accumulates the same cutting damage from the first cycle in Clearfield, UT. If a broken spring sent a shock load through the cable, a new cable installed without spring repair faces the same risk the moment the door is operated in Clearfield. EZ Open Garage Doors identifies the specific cause of cable failure before any replacement to avoid this exact outcome in Clearfield, UT.
Not necessarily, but a correctly performed repair generally costs more than a rushed one because correct diagnosis, correct part selection, and verification all take time in Clearfield. A very low price relative to other quotes for the same described repair can be a signal that one or more of these steps is being skipped in Clearfield, UT. EZ Open Garage Doors prices its repairs to reflect the correct parts and correct procedures, and provides upfront pricing so there are no surprises in Clearfield.
EZ Open Garage Doors' written guarantee covers the repair performed in Clearfield. If the repaired component produces the same symptom within the guarantee period, EZ Open returns and addresses it at no additional charge in Clearfield, UT. The guarantee is provided in writing before EZ Open leaves the job in Clearfield. The specific terms including the coverage period are confirmed with the homeowner at the time of the repair in Clearfield, UT.
EZ Open Garage Doors uses diagnostic tests, such as the manual release test for opener symptoms and the bracket adjustment test for sensors, to confirm the actual cause before recommending any repair in Clearfield. These tests take a few minutes and rule out the most common misdiagnoses before a part is replaced in Clearfield, UT. The specific finding from the diagnostic test is explained to the homeowner alongside the recommendation in Clearfield.
Yes in Clearfield. An undersprung door from an incorrectly specified spring transfers extra load to the opener motor, drive gear, and cables on every cycle in Clearfield, UT. All three accumulate wear faster than designed in Clearfield. A track repaired without alignment verification can produce continued abnormal roller-to-channel contact that increases the resistance the opener has to work against in Clearfield, UT. Both situations shorten the opener's service life even though the original repair wasn't performed on the opener itself in Clearfield.
At minimum, a balance test where spring work was performed, cable seating in both drums, a full opener cycle test, a safety sensor beam interruption test, an auto-reverse force test, travel limit accuracy, and the manual release function in Clearfield. A technician who leaves without checking these has not completed a correct repair in Clearfield, UT. EZ Open Garage Doors verifies all of these on every applicable repair before calling the job complete in Clearfield.
EZ Open's pricing reflects the correct parts and correct procedures on every repair in Clearfield. The price includes the diagnosis, the correct part for the specific door, the correct installation procedure, and the complete system verification before EZ Open leaves in Clearfield, UT. All pricing is confirmed upfront before any work begins in Clearfield. There are no additions introduced after the work starts in Clearfield, UT.
A correctly performed spring replacement costs $150 to $400 depending on whether one or both springs are replaced in Clearfield. A cable replacement with cause assessment costs $100 to $275 in Clearfield, UT. An off-track repair with cause correction costs $125 to $450 in Clearfield. An opener component repair costs $75 to $350 depending on the specific component in Clearfield, UT. These prices reflect correct diagnosis, correct parts, correct installation procedure, and complete system verification in Clearfield.
Yes. Every EZ Open Garage Doors repair is backed by a written guarantee in Clearfield. If the repair doesn't produce the expected result within the guarantee period, EZ Open returns and addresses it at no additional charge in Clearfield, UT.
Call Today

Want It Fixed Right the First Time? Call EZ Open in Clearfield, UT.

A garage door repair done incorrectly produces compounding failures in Clearfield. EZ Open Garage Doors diagnoses every fault correctly before replacing any component, selects the correct specification for every replacement part, performs the repair to correct procedure, verifies the complete system before leaving, and backs every repair with a written guarantee in Clearfield, UT. Diagnosed right. Fixed right in Clearfield. Call now in Clearfield, UT.

Click Here to Call (888) 670-9331
Speak with a garage door specialist now — available 24/7
Click Here to Call (888) 670-9331

Our Garage Door Services in Clearfield, UT

Broken Garage Door Spring RepairGarage Door Cable RepairGarage Door Off Track RepairGarage Door Won't OpenGarage Door Won't CloseGarage Door Opener RepairGarage Door Roller ReplacementGarage Door Sensor RepairGarage Door Track RepairGarage Door Panel ReplacementGarage Door MaintenanceGarage Door InstallationCommercial Garage Door Repair

Serving These Locations

Emergency Garage Door Repair Country Squire Lakes, INEmergency Garage Door Repair Woodside, PAEmergency Garage Door Repair Pemberwick, CTEmergency Garage Door Repair Dyer, INEmergency Garage Door Repair Bloomingdale, FLEmergency Garage Door Repair Rock Island, WAEmergency Garage Door Repair Bishopville, SCEmergency Garage Door Repair Cherryland, CAEmergency Garage Door Repair Humboldt, IAEmergency Garage Door Repair Gumlog, GAEmergency Garage Door Repair Statesville, NCEmergency Garage Door Repair College, AKEmergency Garage Door Repair San Antonio Heights, CAEmergency Garage Door Repair Jacksonville, ILEmergency Garage Door Repair East Lexington, VAEmergency Garage Door Repair Gorman, TXEmergency Garage Door Repair Jackson, WYEmergency Garage Door Repair Gordon, PAEmergency Garage Door Repair Fosston, MNEmergency Garage Door Repair Salida, COEmergency Garage Door Repair Brier, WAEmergency Garage Door Repair Van, TXEmergency Garage Door Repair Addison, WVEmergency Garage Door Repair Edgewood, NMEmergency Garage Door Repair Noank, CTEmergency Garage Door Repair Strathmore, NJEmergency Garage Door Repair Cascade, IDEmergency Garage Door Repair Dauphin, PAEmergency Garage Door Repair Shawnee Hills, OHEmergency Garage Door Repair South River, NJEmergency Garage Door Repair Clarksville, AREmergency Garage Door Repair Boonville, CAEmergency Garage Door Repair Bithlo, FLEmergency Garage Door Repair Sierra Ridge, COEmergency Garage Door Repair Graniteville, SCEmergency Garage Door Repair Felton, CAEmergency Garage Door Repair Cutlerville, MIEmergency Garage Door Repair Niceville, FLEmergency Garage Door Repair Sound Beach, NYEmergency Garage Door Repair Marion, SCEmergency Garage Door Repair Hokes Bluff, ALEmergency Garage Door Repair Frankenmuth, MIEmergency Garage Door Repair East Berwick, PAEmergency Garage Door Repair Ham Lake, MNEmergency Garage Door Repair Haskins, OHEmergency Garage Door Repair Barling, AREmergency Garage Door Repair West Belmar, NJEmergency Garage Door Repair Forreston, ILEmergency Garage Door Repair Woods Creek, WAEmergency Garage Door Repair Morrilton, AR