Hampshire · England
New Build Mastic in Well
Our applicators work in Well on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Untidy sealant flagged on a snagging list
- Sealant applied over dusty or wet surfaces
- Worktop and upstand sealant coming away
Aftercare tips
So the new joints stay in good condition:
- Avoid scourers and strong chemicals on sealant
- Watch for new gaps as the house dries out
- Act quickly if a seal starts to leak
- Photograph failed sealant before it’s redone
Clean the sealant with a mild detergent and a soft cloth. Avoid abrasive pads and strong solvents as they wear the bead.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
New build mastic in Well, done properly
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover with a sealant suited to each area. We work on show homes, bathrooms & en suites and windows & doors, and people most often call us about leaking shower tray seals in a new home and sealant that never bonded to the surface.
In a village or hamlet like Well, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
Each job carries a 12-month guarantee, large or small.
- Place
- Well (RG29)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What the job involves on each surface
Kitchens
As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. We reseal them with a flexible sealant.
Show homes
In a show home, the sealant is on display. Every bead is neat and coloured to suit the room.
FAQs for Well
Can you help a landlord with a rental near Bentley (Hampshire) station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Is Well in your area for new build mastic?
Yes. We work across London and the South East, and Well is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
When is the best time to reseal in a new build?
That depends on the joint. A leaking shower or bath seal should be redone straight away, but cosmetic gaps can wait for movement to slow.
Is there a guarantee?
Yes. Each job is guaranteed for twelve months, wherever you are.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Should I go to my builder first?
Start with the builder if you’re in the snagging or warranty period. Once that’s done, or if they will not put it right, we can reseal it properly.
Can I send you my snagging list?
Yes. Send us the sealant items on the list, with pictures if you can and we will give you a quote. We’ll tell you if anything on it isn’t a sealant job.
Joints and finishes in Well homes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Bentley (Hampshire) station, it’s worth checking the sealant early, while snags are still fresh.
Well is about 5 miles west of Farnham, in Hampshire. Every kind of property in Well can book us for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. We cover 683 towns and villages across Hampshire, large and small. Our Reading page covers work nearby, about 16 miles away.
We work across RG29 for new build mastic. Other places close to Well include Long Sutton (1 mile west), South Warnborough (2 miles west), Odiham (3 miles north), Broad Oak (3 miles north) and North Warnborough (4 miles north-west). Within a short drive, we also cover Basingstoke (9 miles north-west), Farnborough (8 miles north-east), Fleet (5 miles north-east), Aldershot (7 miles east), Alton (5 miles south-west) and Petersfield (14 miles south).
Near you in Well
The nearest railway station is Bentley (Hampshire) station, roughly 2.9 miles south-east of the centre. A little further out are Fleet Community Hospital (5.8 miles north-east) and Barley Pound (2.2 miles east). Green spaces nearby include Holybourne Hill and Dogmersfield Lake.
What happens on the day
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the job takes a few hours for most snagging lists, longer for a run of plots for a typical job. Somewhere as small as Well, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
- Keep children and pets away from the work area
Ask for a quote
Want a quote for new build mastic? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
Read more
What happens if it’s left?
Resealing everything on a snagging list in one visit is generally simpler than chasing joints one at a time. You get one visit and one clear quote. Where a wall is exposed, as many are in small places like Well, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or email us and we will give you an honest view and a quote.
Why choose Mr Mastic in Well
- We leave the area clean and tidy
- A sealant colour to suit the surroundings
- Approved under the ARBOMaster scheme
- White, clear, grey or another colour, product permitting
See what affects the cost and what customers say.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Movement caused by a poorly fitted tray or bath
- Leaks from pipes, valves or wastes, which need a plumber
- Deciding who is responsible under a builder’s warranty
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Windows & doors
- Show homes
- Kitchens
- Plot handovers
- Skirting & floors
- Bathrooms & en suites
Nearby places to Well
More services for Well
Signs you need new build mastic in Well
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, so the bead never bonds properly.
If you can see any of these, it’s time to have the joints looked at:
- Worktop and upstand sealant coming away
- Leaking shower tray seals in a new home
- Gaps between new skirting and floors
- Frame joints opening as the plaster dries
Around Well, as everywhere, new build mastic is only as good as the preparation behind it.
Questions to ask before you book
- How the joint is cleaned and prepared
- Whether all the old sealant comes out first
- What happens if the job turns out different
- Whether the sealant suits the joint