
Extensions, Lofts and Kitchens,
Built Properly Across Surrey.
A family-run building firm based in New Haw and a member of the Federation of Master Builders, serving Surrey and South West London for over ten years. Every project begins with a fully itemised proposal, and you are billed weekly for signed-off work only.
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Kitchens, extensions and conversions we have built.
Building services across Surrey and South West London
Kitchens, house extensions, loft and garage conversions, bathrooms and whole-house renovations, each designed and built by one team.

New Kitchens
Bespoke kitchen design and installation, creating functional, light-filled rooms planned around how you cook and live.
Explore New Kitchens
Extensions
Expand your living space with bespoke single and double-storey extensions designed to complement your property's character.
Explore Extensions
Loft Conversions
Unlock the hidden potential of your home by converting your loft into a new bedroom, office or studio, often without planning permission.
Explore Loft Conversions
Garage Conversions
Transform an underused garage into a functional, high-quality living or working space: the most cost-effective way to add a room to your home.
Explore Garage Conversions
Bathroom Renovations
Premium bathroom design and installation, from compact en-suites to spa-inspired master bathrooms and fully tanked wet rooms.
Explore Bathroom Renovations
Renovations
Whole-home renovation under one roof, from sympathetic period restoration to full structural reconfiguration, rewires, and groundworks.
Explore RenovationsHow You Pay
You only pay for work that's finished.
No large deposit.
Every project starts with a fully itemised Cost Proposal, so you can see exactly what you are paying for before anything is ordered.
You never hand over a big sum up front and hope for the best. Instead, payment follows the work, in three clear steps.
01
Itemised proposal
Before anything is ordered, you receive a fully itemised cost proposal so you can see exactly where every pound goes. Every cost is agreed before work begins.
02
Weekly valuations
As the build progresses, we value the completed work each week and walk you through it, so you always know where the project and the budget stand.
03
Pay for signed-off work only
You are only ever billed for work that has been completed, inspected and signed off. No large upfront deposit, and no invoices for work that has not been done.
What our customers say
“Grand Innovations Surrey did an outstanding job on our kitchen extension. This was a big project involving structural steelwork and a full redesign of our layout, and the team handled everything with real expertise. The quality of finish is superb, and the builders were friendly, tidy, and very considerate of our family routine. The result is better than we imagined, and we feel like we're living in a new home.”
A family business serving your community.
Grand Innovations is a family-orientated business rooted in the Surrey and London communities we serve. When you invest in your home, you deserve to know who is doing the work and that they genuinely care about the outcome.
That's why every client works directly with our leadership team, not a faceless subcontractor. We treat your home with the same pride and respect as our own, and we're here for the long term. From the first conversation to aftercare support, you'll always know exactly who to call.
From first conversation to final handover.
01
Design
We assess your property and produce detailed designs, with planning and building regs handled for you.
02
Costing
You receive your itemised proposal and a clear plan, agreed before any work begins.
03
Build
Our team delivers your project with structured weekly updates and well-managed trades.
04
Aftercare
A thorough inspection and snagging process, followed by ongoing aftercare support.
Get your free cost proposal.
Tell us about your project and we'll arrange a free consultation within 24 hours. No obligation, no large deposits. Just honest, transparent advice.
“Grand Innovations Surrey did an outstanding job on our kitchen extension. This was a big project involving structural steelwork and a full redesign of our layout, and the team handled everything with real expertise. The quality of finish is superb, and the builders were friendly, tidy, and very considerate of our family routine. The result is better than we imagined, and we feel like we're living in a new home.”
Frequently Asked Questions
Your dream home,
realised.
Start your home improvement journey today with a free, no-obligation consultation. Whether it's an extension, loft conversion, or complete renovation, we're ready to help.
Areas We Serve
From our base in New Haw we build across north Surrey and South West London. Choose your town to see how we work there.
- Builders in Addlestone
- Builders in Weybridge
- Builders in Chertsey
- Builders in Walton-on-Thames
- Builders in Cobham
- Builders in Esher
- Builders in Oxshott
- Builders in Leatherhead
- Builders in Surbiton
- Builders in Ashtead
- Builders in Kingston
- Builders in Epsom
- Builders in Ewell
- Builders in New Malden
- Builders in Sutton
Also covering
- Builders in Woking
- Builders in Twickenham
- Builders in Guildford
- Builders in Richmond
- Builders in Banstead
- Builders in Merton
- Builders in Wimbledon
- Builders in Croydon
Popular near you
Don't see your area? Contact us to check availability.


