Roof Installation Cost Calculator

WHAT DOES A ROOF INSTALLATION ACTUALLY COST IN THE UK?

A new roof is one of the most significant investments you’ll make in your home. Done well, it protects the building for decades, improves energy efficiency, and adds genuine value to the property. Done poorly, or left too long, it can lead to water damage, structural issues, and costs far beyond the original job.

The price of a new roof in the UK varies enormously depending on the size of the property, the material chosen, the complexity of the roof, and where you live. Below, we’ve broken down the key cost factors so you can walk into any conversation with a roofer knowing what to expect.

What Affects the Cost of a New Roof?

1. Property Size and Roof Area The most significant factor in any roofing quote is the roof area, measured in square metres. A small terraced house might have a roof area of around 40–60 m², while a large detached property could exceed 150 m². Labour and materials both scale directly with size.
   
2. Roofing Material The material you choose has a major impact on both the upfront cost and the long-term value of the roof. Here is a summary of common options:
   
   

Costs above are for materials and installation combined. Prices vary by region and project complexity.

1. Roof Pitch and Complexity A simple gable roof at a standard pitch is the most straightforward to tile and therefore the cheapest per square metre. Steeper pitches, multiple valleys, dormers, hips, and unusual shapes all add time and complexity, increasing labour costs.
   
2. Number of Storeys Working at height requires scaffolding. A single-storey bungalow needs significantly less scaffolding than a two or three-storey property, which has a direct effect on overall cost.
   
3. Stripping the Existing Roof If your current roof needs to be stripped before the new one goes on, factor in labour for removal and disposal costs. In most cases, stripping is the right approach, as overlaying an existing roof can mask problems and add unnecessary weight.
4.  Location Roofing costs in South West London and Surrey are generally higher than in many other parts of the UK, reflecting higher labour rates and the costs of operating in and around Greater London. Our calculator accounts for this..

Typical Total Costs by Property Type

These are guide figures for standard pitched roofs with concrete tiles and full scaffold. Natural slate, complex roofs, or properties with extras such as chimneys or Velux windows will cost more.

What’s Included in a Maple Roofing Quote?

When we provide a roof installation quote, we itemise everything. There are no vague line items and nothing added at the end. A typical quote covers:

1. Full roof survey and written assessment
2. Supply and installation of your chosen roofing material
3. New roofing felt or breathable membrane
4. Replacement of lead flashing around chimneys, valleys, and abutments
5. Disposal of old roofing materials
6. Scaffold erection and removal (where required)
7. Roof ridge and hip tiles
8. Final inspection and workmanship guarantee

If insulation, guttering, fascias, or Velux windows are required, we quote for these separately so you can choose exactly what you want.

ADDITIONAL COSTS TO CONSIDER

Scaffolding For most two-storey properties, scaffolding adds between £600 and £1,200 to the overall cost. It is a legal requirement for safe working at height and should never be skipped. We include scaffold costs in every quote so there are no surprises.

Insulation Installing loft or roof insulation at the same time as a new roof is far more cost-effective than doing it separately. Cold roof insulation typically adds £400 – £900 to the total, depending on the area and specification.

Guttering and Fascias If your gutters and fascias are showing signs of wear, replacing them alongside the roof keeps labour costs down. New uPVC fascias and guttering typically add £500 – £1,500 depending on the perimeter length.

Velux Windows A standard Velux roof window, supplied and fitted, typically costs between £800 and £1,500 including installation. Fitting one during a full re-roof saves significant labour compared to fitting it separately later.

Chimney Work If your property has a chimney, we inspect the flashing, mortar, and stack condition as part of any roof survey. Repointing or re-flashing a chimney adds between £300 and £800 to the project.

WHY CHOOSE MAPLE ROOFING?

Trusted Roofers in Kingston and Surrey for Over 30 Years

Maple Roofing Ltd has been installing, repairing, and maintaining roofs across Kingston upon Thames, Surbiton, and the surrounding Surrey area for more than three decades. We are fully insured, use only quality materials from trusted UK suppliers, and back every job with a written workmanship guarantee.

We do not work to a sales script. When we visit your property, we tell you honestly what needs doing and what can wait. If your roof has a few more years in it with minor repairs, we will tell you that rather than push for a full replacement.

HOW TO GET AN ACCURATE QUOTE

Step 1: Use the Calculator Above Enter your property details to get an instant estimate. This gives you a realistic cost range before you pick up the phone.

Step 2: Book a Free Roof Survey One of our experienced roofers will visit your property, inspect the roof from all angles, and assess the condition of tiles, flashing, gutters, and felt.

Step 3: Receive Your Written Quote We provide a clear, itemised written quote, usually within 48 hours of the survey. No vague figures, no add-ons after the job starts.

Step 4: We Get to Work Once you are happy to proceed, we agree a start date that suits you. We keep disruption to a minimum and leave the site clean and tidy at the end of every day.