Your trusted
London
builders.
Caroline Builders delivers expert construction and property maintenance — creating beautiful, functional spaces with quality craftsmanship across London.
Construction & property maintenance specialists
Caroline Builders is a London-based construction and property maintenance company with over 15 years of experience. We work with homeowners, landlords, developers, and property managers across Greater London.
Whether you’re planning a major extension, converting your loft, or need a reliable maintenance partner for your property portfolio — we bring the same level of care, skill, and professionalism to every job.
Years experience
Serving London homeowners and landlords
500+
Projects completed
Extensions, conversions, refurbishments
100%
Client satisfaction
Verified reviews from real customers
24/7
Emergency cover
Rapid response maintenance team
Construction & property maintenance specialists
Caroline Builders is a London-based construction and property maintenance company with over 15 years of experience. We work with homeowners, landlords, developers, and property managers across Greater London.
Whether you’re planning a major extension, converting your loft, or need a reliable maintenance partner for your property portfolio — we bring the same level of care, skill, and professionalism to every job.
Years experience
Serving London homeowners and landlords
Projects completed
Extensions, conversions, refurbishments
Client satisfaction
Verified reviews from real customers
Emergency cover
Rapid response maintenance team
What we do
From major construction projects to everyday property maintenance — one trusted team for everything.
Get inspired by our projects
See how we’ve transformed homes and properties across London.
Victorian terrace extension
A full rear and side-return extension on a Victorian terrace in Clapham. Open-plan kitchen-diner with bifold doors, underfloor heating, and a new utility room. Completed in 14 weeks.
“Caroline Builders transformed our home completely. The team were professional, tidy, and communicated brilliantly throughout. We couldn’t be happier.”
— Sarah & Tom, Clapham
Loft conversion — Mansard
A full mansard loft conversion in Islington, creating a master bedroom with en-suite and a separate home office. Structural steelwork, Velux windows, and bespoke joinery throughout.
“From the first meeting to the final handover, everything was handled with care. The quality of the finish is exceptional — it looks like it was always part of the house.“
— James R., Islington
Full property refurbishment
A complete gut-and-rebuild refurbishment of a 4-bed Victorian house in Hackney. New wiring, plumbing, bathrooms, kitchen, plastering, and full decoration. Ready for the rental market.
“Brilliant from start to finish. The project came in on budget and on time, which is rare. The property looks incredible and is now fully let.”
— David M., Landlord, Hackney
Emergency maintenance contract
An ongoing maintenance partnership with a 40-unit residential block in South London. Covering reactive repairs, void turnarounds, and planned works across plumbing, electrics, and decoration.
“Reliable, responsive, and professional. Having Caroline Builders on call has made managing the block so much easier. They sort problems quickly and keep tenants happy.”
— Property Manager, South London
Hear from our clients
Real feedback from homeowners, landlords, and property professionals.
Trusted, vetted, and fully accredited
Caroline Builders holds independent accreditations that verify our health & safety standards, insurance, and contractor competency — so you can hire with complete confidence.
Ready to start your project?
Tell us about your project and we’ll arrange a free site visit and detailed quote. No obligation, no pressure.