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Roof Extensions

Add valuable living space to your home with a professionally managed loft conversion or roof extension — designed, built and finished to the highest standard.

  • Add 1–3 extra rooms
  • Full building regulations handling
  • Finance options available
Roof extension and loft conversion by 7 Star Insulations Limited
Roof Extensions

Transform Your Roof Space, Expand Your Home

That unused loft space could become a bedroom, office, playroom or studio. A well-designed roof extension adds real living space and significant value to your property — without the hassle of moving.

  • Velux, hip-to-gable, rear or side extensions
  • Full architectural design and planning
  • Building regulations and structural calculations
  • Insulation, electrics, plumbing and finishing included
  • Pair with solar panels on the new roof
Book a Free Survey
Free survey No obligation, nationwide
Typical build: 3–6 weeks Depending on complexity
Full warranty Structural and workmanship
Building regs compliant Full certification provided
How It Works

Your Roof Extension, Step by Step

1

Free Survey & Consultation

We assess your roof structure, discuss what you want to achieve and advise on the best type of extension for your property — Velux, hip-to-gable, rear or side.

2

Design & Planning

Architectural drawings, structural calculations and planning permission (if needed) — we handle the full application process.

3

Build & First Fix

Structural steelwork, roof alterations, dormer construction, insulation, windows and weatherproofing — all to building regulations standard.

4

Second Fix & Finishing

Electrics, plumbing, plastering, flooring, decoration — we deliver a fully finished room ready to use.

Extension Types

Which Roof Extension Suits Your Home?

Every home is different. We'll help you choose the right type — or combine options for the best result.

Most Affordable

Velux Conversion

Flush roof windows bring light and ventilation into your loft. Minimal structural work, often no planning permission needed. Ideal for homes with sufficient roof height.

Full Height Room

Hip-to-Gable

Extends the sloping roof into a vertical gable wall, creating a full-height room. Perfect for semi-detached and end-of-terrace homes.

Most Popular

Rear Dormer

A box-shaped extension on the rear roof slope. Maximises space and headroom — the most popular choice for terraced and semi-detached homes.

Maximum Space

Side Extension

Extends into the eaves or side return. Often combined with a rear dormer to create a generous L-shaped room — popular for larger homes.

Roof Extension FAQs

Common Questions, Honest Answers

Many loft conversions fall under permitted development and don't need planning permission. However, if you're in a conservation area, your home is listed, or the extension exceeds certain limits, you'll need an application. We'll advise during the survey and handle all paperwork.
A Velux conversion can take 2–3 weeks. A hip-to-gable or dormer extension typically takes 4–6 weeks, depending on size and complexity. We'll give you a clear programme before work starts.
A well-executed loft conversion typically adds 10–20% to a property's value. It's one of the most cost-effective ways to add space without moving. The exact value depends on the size, quality and your local market.
No — most of the work is in the roof space, so you can stay in your home throughout. We control dust and noise, and keep access to the rest of the house clear. We'll agree working hours that suit you.
Absolutely — a new roof is the perfect time to add solar panels. We can integrate them during the build or add them afterwards. It's a great way to make your extension energy-neutral from day one.
Related Services

Pair Your Roof Extension With These Upgrades

A new roof space is the perfect opportunity to improve your home's energy performance.

Solar PV

Power your new room — and the rest of your home — with free electricity from the sun.

Learn more

Insulation

Insulate the new space properly from day one — warm rooms, lower bills, no cold spots.

Learn more

Heating Controls

Extend your heating system to the new room with smart controls that keep it efficient.

Learn more

Ready to Add Living Space?

Book a free survey and find out what's possible with your roof space — no obligation, no pressure.

No obligation · Free quotes · Nationwide coverage · Friendly, expert team