
Flat Roofing in Inverness & the Highlands
A new or replacement flat roof for your extension, garage or dormer, built to suit the building, with a FREE quote.
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Leave your details for a call back and a FREE, no-obligation quote.
- Reliable & Professional
- Quality Work
- FREE, No-Obligation Quotes
- Owner-Run, Start to Finish
New & Replacement Flat Roofs for Highland Homes
A flat roof covers some of the hardest working parts of a house: the kitchen extension, the garage, the dormer. When the covering has reached the end of its life, you get a new roof laid over a sound deck, with the falls set so rainwater drains off instead of sitting in puddles.
There are three main ways to cover a flat roof. Felt is built up in layers and bonded to the deck. Rubber, known as EPDM, is a single sheet with few or no joints. Fibreglass, or GRP, is resin and glass matting laid in place and finished with a hard topcoat. Each has its strengths, and we explain them in plain terms.
We work across Inverness, the Great Glen and Fort William, where flat roofs take a lot of rain and wind through the year. Every job starts with a FREE, no-obligation quote, so you know what is involved and which covering we recommend before any work is booked.
- Built for Extensions, Garages & Dormers
- Felt, Rubber or Fibreglass Coverings
- Falls Set So Rainwater Drains Away
- A FREE, No-Obligation Quote



Flat Roof Systems We Fit
Each flat roof option and what it does well, so you can see which suits your property before you ask for a quote.
Felt Roofs
Built-up roofing felt laid in layers over a sound deck.
- Lower-Cost Flat Roof
- Layered Waterproofing
- Quick to Lay
- Straightforward to Repair
Rubber Roofs
EPDM rubber laid as one sheet, with no joints across the roof.
- One Seamless Sheet
- Stays Flexible in the Cold
- Lightweight
- Low Maintenance
Fibreglass Roofs
GRP resin and matting cured to a hard, seamless finish.
- Hard, Seamless Finish
- Takes Light Foot Traffic
- Neat Moulded Edge Trims
- Clean, Modern Look
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Flat Roof Replacement, Start to Finish
Everything below is part of the work, so you know exactly what your flat roofs covers before anything is booked.
- Inspection of the Existing Flat Roof
- Stripping the Old Covering
- Replacing Soft or Rotten Decking
- Falls Checked & Corrected Where Needed
- New Felt, Rubber or Fibreglass Covering
- Edge Trims, Upstands & Outlets Finished

Why Choose Us for Your Flat Roof
What you can expect when you choose Caledonian Roofing and Building for flat roofs.

Plain Advice on Each Covering
You get a clear explanation of how felt, rubber and fibreglass differ, so you can choose the right flat roof for your building with the facts in front of you.
One Person from Quote to Finish
As a sole trader, the person who prices your flat roof is the person who lays it, so nothing gets lost between the quote and the job.
Reliable & Professional
We arrive when agreed and keep you informed from the first visit until the new flat roof is complete.
Working Across the Highlands
We work across Inverness, the Great Glen and Fort William, and build flat roofs to handle the wet, windy weather they face here.
Reliable & Professional
You are kept informed at each stage of the job, and the start date agreed with you is the date the work begins.
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Need a New Flat Roof? Get a FREE Quote
FREE, no-obligation quotes from Inverness to Fort William.
Flat Roof Prices: The Main Factors
Every job is priced on what it involves, and you get a FREE, no-obligation quote before anything is booked.
- FREE, No-Obligation Quote
- Price Agreed Before Work Is Booked
- No Commitment to Go Ahead
- Quoted by the Person Who Does the Work
Size & Shape of the Roof
A larger area needs more material and labour, and awkward shapes or several outlets take extra time to detail.
Choice of Covering
Felt, rubber and fibreglass each use different materials and methods, so the system you choose affects the overall cost.
Condition of the Deck
If boards under the old covering are soft or rotten, they need replacing before the new roof goes on.
Access to the Roof
A garage roof at ground level is simpler to reach than a dormer on an upper storey, which can need extra access equipment.
Felt, Rubber & Fibreglass Roofs
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Flat Roofs Across the Highlands
From Inverness at the top of Loch Ness down the Great Glen to Fort William at the foot of Ben Nevis. Not sure if your property is covered? Call with your postcode.
- Inverness
- Drumnadrochit
- Fort Augustus
- Invergarry
- Spean Bridge
- Fort William
How a Flat Roof Is Replaced
- Step 1
Assessing the Roof
We look at the covering, the deck beneath it and how water leaves the roof, then recommend the flat roof system that suits it.
- Step 2
Stripping Back to the Deck
The old covering comes off and the boards are checked. Any soft or damaged sections are replaced so the new roof has a firm, level base.
- Step 3
Laying the New Covering
The chosen felt, rubber or fibreglass system goes over the prepared deck, with edges, upstands and outlets detailed to shed water.
- Step 4
Final Checks
Outlets and edges are checked so water runs off cleanly. We then review the new flat roof with you and confirm it is all as agreed.
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Flat Roof FAQs
Straight answers to the questions people ask most often about flat roofs in the Highlands. If yours is not here, call and ask.
Which Flat Roof Covering Is Best for My Extension?
Why Does Water Sit in Puddles on My Flat Roof?
Do You Replace the Boards Under a Flat Roof?
Can You Fit a New Flat Roof on a Dormer?
Is It Worth Putting a New Flat Roof on a Garage?
Can’t Find the Answer You’re Looking For?
Call or ask for a FREE quote and you will get a straight answer.


