“Absolutely fantastic service from Loft Box. The team was professional, efficient, and delivered exactly what they promised. Our loft conversion exceeded all expectations and the quality of work is outstanding.”
SarahLondon
Verified customer
Why Loft BOX
A general builder fits a loft conversion between kitchens and extensions. We have spent more than twenty years doing one thing — which is how we can fix the price, finish in weeks and stand behind the structure for a decade.
How we work
Most people start with the same question — what will it cost? — and get a sales appointment instead of an answer. We built our price calculator so you get a real figure first, and only talk to us when you want to.
20+
Years of loft conversions
Lofts only. Nothing else.
10yr
Structural guarantee
Steels, floor, dormer frame.
2.25m
Head height needed
Joists to ridge. We measure it free.
£25k
Standard conversion from
+ VAT. Fixed in writing.
How it works
01
Seven questions about your home and what you want. A real figure, and what it could add to your home's value, with no email required.
60 seconds02
One of our surveyors measures up, checks head height and talks through layouts. You get a written fixed price, usually the same day.
45 minutes at home03
Drawings, structural calculations and Building Control handled for you. If planning permission is needed, we guide you through it.
We handle the paperwork04
A specialist loft crew on site, managed day to day. Inspected, signed off and handed over with your 10-year guarantee.
Weeks, not months
The guarantee
Our guarantee covers the structural elements we install — steel beams and supports, the new floor structure, load-bearing work in the loft, and the dormer frame — for ten years from practical completion. Windows, boilers and other products carry their own manufacturer warranties on top.
What homeowners say
“Absolutely fantastic service from Loft Box. The team was professional, efficient, and delivered exactly what they promised. Our loft conversion exceeded all expectations and the quality of work is outstanding.”
“From initial consultation to project completion, Loft Box provided exceptional service. The attention to detail and craftsmanship is remarkable. Highly recommend for anyone considering a loft conversion.”
“Outstanding work and customer service. The team was punctual, clean, and respectful throughout the entire process. Our new loft space has transformed our home completely. Thank you Loft Box.”
“Professional, reliable, and skilled team. The loft conversion was completed on time and within budget. The quality of materials and workmanship is excellent. Would definitely use Loft Box again.”
“Incredible transformation of our loft space! The team at Loft Box made the entire process smooth and stress-free. Excellent communication throughout and the final result is beyond our expectations.”
Seven quick questions. A real fixed-price figure. No email needed to see it.