Local builders in Havant you can rely on
Conmax Ltd are builders in Havant, and we work from the town every day. Whether you need a rear extension, a full refurbishment, a new kitchen or bathroom, or a smaller home improvement job, our team can help homeowners, landlords and businesses across Havant and the surrounding area. Call 07909 664 685 for a free, no-obligation quote.
Being based here means we know the local housing well. Havant has a real mix: Victorian and Edwardian terraces close to the station, 1930s semis around Bedhampton, and the large post-war estate at Leigh Park, where many former council houses are now being modernised by their owners. Older cottages in Langstone and Warblington bring different challenges again, and each one calls for its own approach. Because we are local, site visits and quotes are usually quick to arrange, and we are close by if something needs a return visit.
Building work we carry out in Havant
- Single and double-storey house extensions
- Kitchen, utility room and bathroom fitting
- Loft and garage conversions
- Full and partial property refurbishments
- Plastering, flooring, tiling and decorating
- Carpentry, fencing, decking and patios
Modernising homes in Leigh Park, Bedhampton and the town centre
Many Havant homes were designed when families were smaller and kitchens were closed off from the rest of the house. Knocking through into an open-plan kitchen-diner, adding a rear extension, or turning an integral garage into a bedroom or home office are among the most common jobs we are asked to price here. You can read more about our property extensions and home improvement services, or see how we approach a full property refurbishment.
If you have decided to stay put rather than move, a well-planned extension is worth weighing against the cost of moving, and it lets you shape the space around how your family actually lives.
Planning, building regulations and conservation areas
Many Havant projects can go ahead without a full planning application, but not all of them. Parts of Havant, Langstone and Warblington fall within conservation areas, where tighter rules can apply to extensions, windows and materials. Havant Borough Council handles planning and building control locally, and the Planning Portal explains what needs permission. As builders in Havant, we work with the borough’s planning and building control teams where needed, so we will tell you straight what your project needs and deal with the paperwork alongside your architect or designer.
Why Havant customers choose Conmax
Our customer reviews come back to the same words again and again: punctual, tidy and reliable. We turn up when we say we will, protect your home while we work and keep you informed at every stage. Every job is fully insured, and we are happy to talk through the details before you commit to anything.
If you are comparing quotes from builders in Havant, ask each firm for a clear, itemised written breakdown so you can compare like with like. We are always happy to provide one. We also cover neighbouring towns, including Emsworth, Waterlooville, Hayling Island and Portsmouth.
Recent building and home improvement work
A selection of recent projects from our team. Tap a photo to see it full size.
What customers say about our work
“I had Constantin installing our new Wren kitchen and redo completely our toilet downstairs - we now have a shower in it as well. Very pleased with the result.”
“He is extremely clean and tidy. Extremely meticulous and his work is just wow.”
Read all of our customer reviews
Get a free quote in Havant





