Garage doors in Derby and the Amber Valley
Garage door stuck? Fixed today, at a fixed price.
Springs, cables, rollers and openers repaired from the van, usually on the first visit. Or a new door, made to measure and fitted by our own team.
Fixed prices for the common faults
- Pair of torsion springs£245
- Both lift cables£165
- Opener repair£145
- Full set of rollers, single door£129
Next visit: same day if you book by 2pm
New doors, made to measure and fitted
Free survey, fitted in 1 to 5 weeks
4.9 from 1,184 reviews 17 years in Derby No call-out fee
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Same day before 2pm
Book a repair by 2pm on a weekday and a van is with you the same afternoon.
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Fixed price first
You agree the price at the door, before a tool comes out. No call-out fee.
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Two-year guarantee
Every repair is guaranteed for parts and labour for two years.
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Parts on the van
Springs, cables, rollers and drums in every common size travel with us.
Repairs and new doors, priced before we start
Every price is fixed, includes VAT and is agreed at the door before any work starts. Most repairs are done in under two hours.
from £245 Broken spring replacement The bang from the garage, then a door nobody can lift. We carry matched springs on every van and fit the pair the same day. 
from £165 Cable and drum repair One side has dropped, or a cable is hanging loose. We replace both cables, reseat the drums and bring the door back level. 
from £129 Off-track, roller and hinge repair A door that grinds, sticks at the curve or has come out of its track. We re-seat it, true the tracks and fit quiet sealed rollers. 
from £145 Opener repair and new openers Clicking, humming, reversing for no reason or a remote that stopped working. We fix the opener you have, or fit a new one from £395. 
from £89 Service and balance test A yearly check that keeps a door quiet and catches the worn cable or tired spring before it strands the car. 
from £895 New garage doors, supplied and fitted Sectional, roller, up-and-over and side-hinged doors, made to measure for your opening and fitted by our own team. Price a new door in under a minute
Pick the style, the width and the extras. The price is what you pay, fitted, with VAT. The survey checks the size, not the price.
6 vans, 12 towns, one phone number since 2009
Kelmer is a family firm from a trade unit on the east side of Derby. The person who answers the phone books the van, and the engineer who turns up is one of ours, not a subcontractor. We carry the parts, so most doors are working again before we leave.
- Repairs a year
- 2,600
- New doors fitted
- 4,200
- Fixed on the first visit
- 9 in 10
From your call to a door that holds at half height
A balanced door stays put when you let go of it half way. It is the last thing we check on every visit.
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Call or book online
Tell us what the door is doing. We give you the likely fault and the fixed price on the phone, and a visit window.
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Checked at the door
The engineer confirms the fault and the price before a tool comes out. If it is a different job, you hear it first.
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Fixed from the van
Springs, cables, rollers, drums and opener parts in every common size travel with us, so most jobs finish on the first visit.
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Balanced and tested
We release the opener and test the door by hand: it should hold still at half height. Then the safety reverse, then the remotes.
What is your door doing?
Pick the symptom. You get the likely fault, the fixed repair price, whether it is safe to use and the next visit we can make.
Most likely
A broken spring, most often
If the door feels far heavier than usual by hand, the spring that carries its weight has failed. A door that will not move at all with a light by hand usually has a jammed roller or a seized lock.
Fixed repair price
£245
Pair of torsion springs, wound to the door’s weight
Safe to use until we come?
No
Leave it shut. Forcing it strips the opener and can drop the door.
Next visit window: same day if you book by 2pm · about 1.5 hours on site
The engineer confirms the fault at the door and the price before any work starts. No call-out fee.
Is your door worth repairing?
Usually, yes. Its age, and how often it has failed lately, decide. Here is how a repair compares with a new door.
| Repair a door under 10 years old | Repair a door over 15 years old | Replace with a new insulated sectional | |
|---|---|---|---|
| Typical cost | £129 to £245 | £165 to £400 | from £1,675 fitted |
| Warranty | 2 years on the repair | 2 years on the repair | 10 years door, 2 years fitting |
| Insulation | As it is now | Usually none | 20 mm foam core as standard |
| Expected life | 10 years or more | 2 to 5 years | 25 years or more |
| Our advice | Repair it | Repair if it is the first fault | Replace if it keeps failing |
Most doors were working again the same day
Rated 4.9 by 1,184 customers. Each review below came from a repair: the door, what had gone wrong, and the hours from the phone call to a working door.
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- Door
- Double sectional
- Fault
- Snapped torsion spring
- Call to fixed
- 4.5 hours
“Spring went at seven in the morning with the car inside. I rang at eight, they were here by eleven, and I was driving to work at half twelve. The price on the phone was the price on the invoice.”
R. M., Belper
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- Door
- Single up-and-over
- Fault
- Cable off the drum
- Call to fixed
- 6 hours
“One side of the door had dropped about a foot and I was sure it needed replacing. Kelmer put two new cables on, levelled it, and told me straight that the door has another ten years in it.”
A. P., Mickleover
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- Door
- Single sectional
- Fault
- Opener clicking, door still
- Call to fixed
- 3 hours
“The opener had been clicking for a week. The engineer found a worn gear, fitted it on the spot and showed me the old one. Cheaper than the new motor I had been quoted elsewhere.”
J. T., Long Eaton
Look after the door between visits
Short, season-by-season guides. Each one says plainly what is safe to do yourself and what to leave to us.
The ten-minute autumn check before the cold sets in Springs break most in the first cold snap. Ten minutes with the door in October tells you whether yours is likely to be one of them. 
A spring clean for the garage door: lubricate, tighten, test Twenty minutes, a can of silicone spray and a socket set. What is safe to do yourself, and the three parts you should always leave to us. 
Cold mornings and a door that won't close A door that goes down, touches the floor and springs back up on a frosty morning is rarely broken. Here is what is going on and what to try first. Springs, new doors and openers: the questions we get
Can’t see yours? Ring us. The person who answers knows doors.
Can I open the door if a spring has broken?
Please don’t. A broken spring leaves the full weight of the door, often 70 kg or more, on the cables and the opener. Forcing it strips the opener’s gears and can drop the door. Unplug the opener, leave the door shut and call us.
Why do you replace both springs when only one broke?
They are the same age and have done the same number of cycles, so the second one is rarely far behind. Replacing the pair costs £245 together; replacing them one at a time costs two visits.
Do you charge a call-out fee?
No. We look at the door, tell you what is wrong and give you a fixed price at the door. If you would rather not go ahead, you owe nothing.
How quickly can you come?
Book by 2pm on a weekday and a van is with you the same day, usually within four hours. Saturdays run until 5pm, and on Sundays we come out for doors stuck open or stuck shut.
How long does a new door take?
Every door is made to measure after a free survey. Up-and-over doors are ready in about a week, roller doors in two, sectional doors in three and side-hinged in five. Fitting itself takes most of a day.
Do I need planning permission?
Replacing a garage door like for like almost never needs it. Listed buildings and conservation areas can be different, so check with your council if your house is in one. We can give you drawings for the application.
Will a new door fit my opening?
Nearly always. Doors are made to the size of your opening, and sectional and roller doors can go behind the opening when the frame is out of square. The survey tells you exactly what will fit.
What happens to my old door?
We take it away on the day for £95 (single) or £135 (double) and recycle the steel. Timber doors go to a reclaim yard where they can.
Can you add an opener to my existing door?
Usually, yes. Sectional, up-and-over and side-hinged doors can all take one if the door is balanced and in good order. We check the balance first, because an opener on a heavy door wears out in months.
My opener strains. Is the motor dying?
Rarely. An opener only moves a balanced door the last few kilos; the springs carry the rest. A straining opener nearly always means a spring has weakened. We test the balance before we condemn any motor.
What if there is a power cut?
Every opener we fit has a release cord so you can open the door by hand from inside. For garages with no other way in we fit an outside release lock, or a battery backup for £95.
Can I open the door from my phone?
Yes. Most openers we fit take a small Wi-Fi receiver for £75, so you can open, close and check the door from an app.
Door stuck open, or stuck shut? Ring before 2pm.
Tell us what it is doing and you get the fixed price on the phone. A van with the parts on board is with you the same day.