Extensions
Practical, design-led extensions projects for Hertfordshire homes.
Extensions · Refurbs · Garden rooms
Newtons Building Services for Hertfordshire homes.
Newtons Building Services Hertfordshire Limited has over a century of combined employee experience, there’s no challenge too big for us to tackle. From concept to completion, we have the knowledge and skills to deliver exceptional results for extensions, refurbishments and garden rooms.
- Hertfordshire & surrounding areas
- Family-run business: recommendations & referrals
- Typical reply within 1–2 working days
Core services
The work we regularly deliver for homeowners
A focused set of extensions, refurbs and related services that give a quick picture of the type of projects we regularly take on for homeowners in the area.
Loft extensions
Practical, design-led loft extensions projects for Hertfordshire homes.
Garden rooms
Practical, design-led garden rooms projects for Hertfordshire homes.
Kitchens
Practical, design-led kitchens projects for Hertfordshire homes.
Garage conversions
Practical, design-led garage conversions projects for Hertfordshire homes.
Refurbishments
Practical, design-led refurbishments projects for Hertfordshire homes.
General building
Residential building services for structural and internal work.
Why homeowners choose us
A straightforward, low-stress way to get work done on your home
A simple overview of how we work and what happens once you get in touch, so it feels easy and low-pressure to start the conversation.
Recommended by local homeownersRegular repeat & referral workFully insured, clear paperwork
A straightforward way to explore what's realistic.
Use the contact form to outline your project. We'll come back with honest guidance on budget, timings and whether we're the right fit, before anything is booked in.
How it works
- Send the form with a brief outline and your location.
- We review and reply within 1–2 working days.
- If it looks like a good fit, we agree a visit and next steps together.
Client testimonials
What homeowners say after working with Newtons
A few recent reviews that reflect how we work: clear communication, tidy delivery, and a quality finish.
5.0 / 5
Office refurbishmentUsed Lee and his team on a recent office refurbishment. Very pleased with the results and recommend their services.
5.0 / 5
Bathroom refurbishmentThe team were excellent and took real care in everything they did. They replaced our bathroom and it is beautiful. They were highly professional and nice to have in our home. We would highly recommend and will use again.
5.0 / 5
Internal refurbishmentExcellent experience with Lee and his team. We have used them twice recently to lay a floor and build new internal walls and doors. They are polite, tidy and price fairly. The best building firm I've found.
Recent from Instagram
A closer look at the work homeowners love
Community stories
Local work we're proud to support
We take pride in giving back to our community. Whether it’s rebuilding a local pub’s outside area after fire damage or participating in projects like DIY SOS, we’re committed to making a positive impact.
Newtons Building Services on DIY SOS
Newtons Building Services in Hoddesdon supported the BBC DIY SOS build in Barnet for PC Kris Aves, who was wounded during a terror attack.
Galley Hall Pub Rebuilt After Fire
The Galley Hall pub in Hailey Lane was saved from disaster and rebuilt by loyal regulars after a serious early-morning fire.
Areas we cover
Focused on Hertfordshire, happy to travel further
We're based in Hertfordshire and most of our work is in the surrounding towns and villages, but we're not limited to these areas. If you like the look of what we do and you're a little further afield, please still get in touch and we'll let you know what's possible.
HoddesdonHertfordWareBroxbourneNazeingWelwyn Garden CitySt Albans
Questions
Practical details homeowners often ask about
How far ahead are you typically booked?
It varies throughout the year, but most projects are booked between 2–12 weeks in advance. Once we understand your scope and availability, we’ll give you a realistic start window and keep you updated if anything changes.
Can you work in occupied homes?
Yes — most of our work is in lived‑in homes. We plan works carefully to keep disruption as low as possible, protect existing finishes, and maintain safe access for you and your family.
Do you help with planning and building control?
Yes, we can guide you through the planning and building control process or work alongside your architect. We’re happy to advise on what’s likely to be required before you commit to any major decisions.
What affects budget and timings most?
Access to the property, the complexity of the design, product choices and how quickly decisions are made all play a part. During the quotation stage we’ll flag anything that may impact cost or programme so expectations are clear from the start.