Add Space and Value Without Losing Your Garden
Loft Conversions in Bury St Edmunds
A loft conversion is one of the most cost-effective ways to add space and value to your home. We design and build loft conversions across Bury St Edmunds and the wider Suffolk area, handling everything from the first drawings and building regulations through to the finished room.

Loft & Dormer Conversions
What we offer
Types of Loft Conversion We Build
Velux Conversions
The simplest and most affordable option where the existing roof has enough head height, with windows set into the roof line.
Dormer Conversions
A box-shaped extension out from the roof that adds significant headroom and floor space, ideal for a bedroom with an en-suite.
Hip-to-Gable Conversions
Extending a sloping side roof out to a vertical gable to create extra width, common on semi-detached and detached Suffolk homes.
Mansard Conversions
The most extensive option, reshaping the roof to maximise space, often used in conservation areas and on period properties.
Design & Planning
We assess your roof, head height and structure, design a layout, and handle any planning needs and building regulations.
Structural Work
Steel beams, floor joists, dormers and staircases installed by skilled tradespeople, all overseen by master carpenter James Doughty.
Fit-Out & Finish
Insulation, plastering, electrics, flooring, joinery and decoration leave you with a warm, finished room ready to use.
TESTIMONIALS
What our Happy Clients Say About us
“James is a really talented joiner and builder. He has so much experience and gives helpful suggestions and opinions that enhance your own ideas. He is reliable and strives to get the job done on time.”
—Niamh Evans
“They talked us through each step of the process and gave us a very competitive price, which did not change half way through. Their designs and quality of work were first class.”
—Jon Clayden
“James completed some work for us in the local church towards the end of 2025 and we were thrilled with the result. Top quality workmanship.”
—Philip Cockell
Why choose us
Why Choose Doughty for Your Loft Conversion?
Local Expertise in Bury St Edmunds
Our in-depth knowledge of local architectural styles and regulations ensures seamless integration of new carpentry & joinery works.
Skilled Craftsmanship
Sustainable Materials
Transparent Process
Trusted by Homeowners Across Suffolk
Locations
Areas We Serve
We proudly provide carpentry and building services in:
Bury St Edmunds, Stowmarket, Sudbury, Newmarket and the surrounding Suffolk towns and villages. Not sure if we cover your area? Just ask, we are happy to travel.
Frequently Asked Questions
How much does a loft conversion cost in Suffolk?
As a guide, Velux conversions run £22,500 to £30,000, dormers £40,000 to £60,000, hip-to-gable £50,000 to £70,000, and mansards £65,000 to £80,000. We price each project individually after a site visit.
Do I need planning permission for a loft conversion?
Many loft conversions fall under permitted development, but it depends on your property and any conservation status. We assess this for you and handle any planning applications needed.
How long does a loft conversion take?
Most loft conversions take six to ten weeks depending on the type and complexity.
Do you handle building regulations?
Yes. We manage building control sign-off, including structural calculations, fire safety, insulation and staircase requirements.
Will a loft conversion add value to my home?
A well-built loft conversion is one of the most reliable ways to add both living space and resale value, particularly when it adds a bedroom and en-suite.
Contact Us
Thinking About Converting Your Loft?
Whether it is a simple rooflight room or a full dormer, we will design and build a loft conversion that adds real space and value.
Get in touch for a free, no-obligation quote.




