Loft insulation
Mineral wool laid in two layers, between the joists and then across them, to a depth that suits your loft. Pipes and tanks are lagged on the way.
Typical loftfrom $650
Keep the heat in the rooms you pay to warm
Warmcoat fits loft, wall and floor insulation after a survey with a thermal camera. We show you where the heat is going, explain what each measure is likely to change in your home, and never quote a saving we cannot stand behind.
$150survey, taken off the bill if we fit
10 yearsworkmanship guarantee
2 daysto send the written quote
- Thermal camera on every survey
- Lofts, walls and floors
- Ventilation checked before we insulate
- Savings explained, never promised
Where the heat escapes, and what we fit there
Starting prices are for a typical two or three bedroom house with clear access. The survey report confirms the price before anything is booked.
Loft boarding on raised legs
Storage boards lifted above the insulation, so the wool keeps its full depth instead of being squashed flat under boxes.
Up to 15 square metresfrom $560
Cavity wall insulation
Bonded beads blown into the gap between the two leaves of brick through small holes, which are filled and colour matched afterwards.
Typical housefrom $1,300
Solid wall insulation, inside
Insulated boards fixed to the inside of outside walls, room by room, with sockets, skirting and window reveals moved and refinished.
One roomfrom $2,100
Suspended floor insulation
Wool held in netting between the joists of a timber floor, fitted from the void below or by lifting boards, with airbricks kept clear.
Ground floorfrom $1,400
Draught proofing
Doors, sash windows, the loft hatch and gaps around pipes sealed, while the vents your boiler and kitchen need stay open.
Whole housefrom $240
Every price includes taking away offcuts and packaging. Scaffolding, if a wall needs it, is shown as its own line in the quote.
Which insulation suits which part of the house
Houses are built in different ways, and the right material depends on how yours was put together. These are the usual answers our surveyors start from.
| Part of the house | What we usually fit | What we check first |
|---|---|---|
| A loft you can walk into | Mineral wool in two layers, across the joists | Airflow at the eaves and any damp on the roof timbers |
| A room in the roof | Rigid boards between and under the rafters | A ventilated gap under the tiles or slates |
| Brick walls with an empty cavity | Bonded beads blown into the cavity | Exposure to driving rain, cavity width and the pointing |
| Solid walls with no cavity | Insulated boards on the inside, room by room | Signs of damp and how the wall dries out |
| A timber floor over a void | Wool held in netting between the joists | Airbricks and the airflow under the floor |
| A concrete ground floor | Usually left alone unless it is being relaid | Door thresholds and finished floor heights |
A survey before any quote
Insulation fitted in the wrong place can trap moisture, so we look at the whole house before suggesting anything. The surveyor spends about an hour with you, inside and out, and sends a written report with a fixed quote within two working days.
- Thermal camera images of walls, ceilings and window frames
- Loft depth measured and roof ventilation checked
- A borescope look inside the wall cavity through one tiny hole
- Damp readings on any wall we might insulate
- The $150 fee comes off the final invoice when we fit
What your savings depend on
Insulation lowers the heat a house loses, but how much that changes your bills depends on the home. These are the things that move the number either way.
- How much insulation is there already
- The size and shape of the house
- How the house is heated and what the fuel costs
- How warm you keep the rooms
- Draughts around doors and windows
- The local winter climate
- The hours someone is at home
We never promise a figure, because no honest installer can. The survey report ranks the measures for your house and explains why one comes before another. Grants and support schemes vary by country and by city, so we tell you which ones we know of locally, and you confirm whether you qualify with the scheme itself.
From the survey to a warmer house
Survey
An hour at the house with the thermal camera, the borescope and a damp meter.
Written quote
A report with photos, the measures we suggest in order and a fixed price.
Preparation
You clear the loft or the room; we lay dust sheets and protect the floors.
Fitting
Most lofts take a day, cavity walls one or two days, solid walls a few days a room.
Final check
Another look with the thermal camera, then the guarantee papers are handed over.
Recent jobs, before the hatch went back
Most insulation disappears from view the day it is fitted, so our fitters photograph every stage for the customer's report.
What homeowners noticed (example reviews)
The thermal pictures showed a cold patch over the bay window that nobody had spotted. The quote put the loft first and the bay second, and explained why in plain words.
Our cavity was not suitable because the gable faces the prevailing rain, and they said so instead of filling it anyway. We had the loft and the floor done instead.
Two fitters, one day, and the loft boards went back on raised legs so the storage space survived. They even lagged the old water tank without being asked.
Questions before you insulate
How much will insulation save me?
It depends on the home: how much insulation is there now, how the house is heated, the fuel price and how you live in it. The survey report explains which measures are likely to help most, and we do not put a promised figure on it.
Can insulation cause damp?
It can when it blocks ventilation or bridges a wet wall, which is why we check airflow, damp readings and the exposure of each wall first. If a wall is not suitable, the report says so.
Are there grants for insulation?
Some countries and cities run grants or support schemes, and the rules change often. We tell you about the schemes we know of in the area, and you confirm whether you qualify with the scheme itself.
Does insulating need permission?
Building rules vary by country and by city. Some work has to be notified to the local building authority, and older or protected buildings can need consent first. We check this for your house before we book a date.
Can we stay at home while you work?
No. Lofts and cavity walls are done while you live there, and solid wall work moves room by room. We ask you to clear the loft or the room before the fitters arrive.
How is the work paid for?
A 20 percent deposit fixes the fitting date and the rest is paid when the job is signed off. You settle the balance with our office directly, by the method agreed on the quote.
Book an insulation survey
Tell us about the house and what you notice in winter. Someone from the survey office rings back the next working day to fix a time.
- Fixed quote in writing within 2 working days
- Survey fee taken off the bill if we fit
- Questions first? Call +44 20 7946 0113
Talk to the survey office
Surveys run on weekdays and Saturday mornings. The office answers the phone during the hours below.
Reach the office
Homes across the city and the villages within 50 km
Office hours
| Monday to Friday | 08:00 to 17:30 |
| Saturday | 09:00 to 13:00, surveys only |
| Sunday | Closed |
Where we survey
Houses, bungalows and flats across the city and the villages within 50 km. Further out, we tell you the travel charge before the survey is booked.