07497054262
Dormer, hip-to-gable and Velux conversions
Dormer, hip-to-gable, mansard and rooflight conversions.
Loft Extensions
Loft Extensions
The cheapest room you'll ever add to a London house
A loft conversion is usually the cheapest square footage you will ever add to a London home — the roof, walls and foundations are already there, so most of the cost goes into making the space usable rather than creating it.
We handle the structural work, staircase, insulation, dormers and rooflights, and the fire regulations that catch most conversions out, so the finished room is signed off properly.
What's Included
What a Loft Conversion Covers
Structure, stairs, insulation and the fire regulations — everything needed to turn roof space into a room that signs off.
Structural steels and floor strengthening
Steels and floor strengthening to carry a habitable load.
Staircase design to fit the existing landing
A staircase designed to work with the existing landing.
Fire regulation and building control sign-off
Fire doors, escape routes and full building control sign-off.
Free quote
Need help with loft extensions?
Tell us about your project and we'll arrange a free site visit, then send a detailed, fixed-price quote — usually within 24 hours.
Worth knowing
Will your loft actually convert?
The quickest test is head height: measure from the floor joist to the ridge, and you generally want around 2.2 metres of usable height before the stairs and insulation eat into it. Traditional cut roofs convert more easily than modern trussed ones.
Most London terraces and semis will work, often under permitted development rather than full planning. We will tell you at the survey if yours is a genuine non-starter rather than selling you a feasibility study.
How We Work
Inside Our Renovation Process
A clear, four-stage process designed to keep your project on schedule and free of surprises.
Initial consultation
We go over your vision, property needs, budget, priorities, and desire for renovations.
Planning and design
Our staff creates sensible designs, thorough specifications, timetables, and recommendations for projects.
Building and installation
Expert tradespeople painstakingly, effectively, and in conformity with agreed designs finish the makeover.
Final handover
We check the finished work, take care of any loose ends, and make sure everything is up to standards.
Why Choose Us
Why Pick Our London Renovation Company
Local Experts
London Know-How
We understand London homes, layouts, property constraints and improvement expectations.
One Team
Complete Service
Renovation, plastering, plumbing, electrics, carpentry, tiling, flooring — all under one roof.
Transparent
Clear Pricing
Detailed quotes explaining work, materials, and expenses before we start.
Craftsmanship
Quality Finish
With every job comes careful preparation, expert trades, and long-lasting materials.
On Schedule
Trustworthy Timelines
A systematic approach that removes delays, disruption and project stress.
Supported
Practical Advice
Advice on layout, materials and long-term value at every step of your refurbishment.
Testimonials
What Our Clients Say
Don't just take our word for it. Here's what homeowners across London have to say about working with DSK Design and Build.
“DSK Design and Build completely transformed our bathroom. The attention to detail was incredible, and the team was professional from start to finish. Highly recommend!”
Sarah ThompsonKensington, London“Our loft conversion exceeded all expectations. The team was punctual, tidy, and delivered exactly what we envisioned. The project was completed on time and on budget.”
James WilsonHampstead, London“We hired DSK Design and Build for a complete home renovation. The communication was excellent throughout, and the quality of work is outstanding. Our home looks brand new!”
Emily ChenNotting Hill, London“Fantastic landscaping work! They transformed our overgrown garden into a beautiful outdoor living space. Professional team with great ideas.”
Michael BrownChelsea, London“DSK Design and Build handled our kitchen extension beautifully. They managed all the planning and building work seamlessly. Would definitely use them again!”
Amanda RobertsIslington, London“Excellent plumbing and electrical work during our renovation. The team was knowledgeable, efficient, and left everything spotless. Great value for money.”
David PatelRichmond, London“DSK Design and Build completely transformed our bathroom. The attention to detail was incredible, and the team was professional from start to finish. Highly recommend!”
Sarah ThompsonKensington, London“DSK Design and Build completely transformed our bathroom. The attention to detail was incredible, and the team was professional from start to finish. Highly recommend!”
Sarah ThompsonKensington, London
FAQ
Frequently Asked Questions
Find simple answers to all your common queries about organizing, budgeting, managing, and finishing London house remodels.
Depending on the size, state, specification, structural work, design needs, and finish level of the property, a complete London house makeover typically costs between £1,500 and £3,000 or more per square metre. Listed buildings, large renovations, high-end materials, and central London sites can drive up costs noticeably. A thorough property survey and written quote offer the most sensible projection.
The scope of the project, approvals, state of the property, material availability, and number of trades engaged all affect timelines. Renovations of a single room could last a few weeks; those of an entire house could span several months. Before construction starts, a thorough schedule should be decided.
Yes. We arrange surveys, design, authorizations, structural work, plumbing, electrics, construction, installations, decoration, and ultimate finishing. Our knowledgeable building crew helps to simplify communication, maximize cooperation between trades, and offer homeowners one point of contact during the makeover.
Look for good insurance, good references, recent work samples, clear written estimates, experience, and communication. Confirm what is covered, how deviations are handled, the likely timescales, amounts of payment, and who authorises. Value, quality, structure and dependability are also highly important, so don’t only opt for the lowest price
Many internal changes don’t call for planning permission. But extensions, significant outside modifications, loft conversions, listed structures, and homes in conservation zones might need listed building permission or planning permission. Even in cases where planning permission is not needed, Building Regulations approval may be important. Before work starts, requirements should be checked with the relevant London borough.
We flag anything unexpected as soon as we find it, explain the options and costs, and agree the way forward with you before continuing.
Yes. Our workmanship is guaranteed, and manufacturer warranties on materials and fittings are passed on to you at handover.
Often yes, depending on the work. We'll discuss which rooms stay usable, keep the site tidy and phase the work to limit disruption.
Contact Us
Start Your London Renovation
Tell us about your home, aspirations, and goals, and we can assist you in organizing your next makeover with confidence.
Get in Touch
- Phone07497054262
- Emailsupport@dskdesignandbuild.co.uk
- Business HoursMon - Sat: 9am - 3pm
- Visit Us173B Green St, London E7 8JE, United Kingdom
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