Hampshire · England
New Build Mastic in Hartley Mauditt
Plot mastic for developers and snagging failed sealant in new homes in Hartley Mauditt, with a 12-month guarantee on every job. Ask us for a quote.
- Joints pulling apart as timber shrinks
- Sealant applied over dusty or wet surfaces
- Gaps behind new kitchen upstands
New build mastic in Hartley Mauditt
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that is reasonable, but a seal that is letting water through needs doing now. We work on kitchens, windows & doors and skirting & floors, and people most often call us about plot mastic for developers ahead of handover and new-build shower sealant that has already split.
For a small place like Hartley Mauditt, the journey and access are planned in advance, and the work itself is the same as on any site.
We stand behind the work with a one-year guarantee.
- Place
- Hartley Mauditt (GU34)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Hartley Mauditt
Is Hartley Mauditt in your area for new build mastic?
Yes, Hartley Mauditt is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.
Will you come out to Hartley Mauditt?
Yes, Hartley Mauditt is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
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 right away, but cosmetic gaps can wait for movement to slow.
Do you take on second-fix sealing for builders?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. Good preparation keeps snagging to a minimum.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Will it make a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Landlords, agents and businesses in Hartley Mauditt
For anyone letting property in or around Hartley Mauditt, several properties can be quoted together. Send us the addresses and the work at each.
Landlords and letting agents in Hartley Mauditt can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
The process
On the day, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to several days, depending on the number of plots. Somewhere like Hartley Mauditt needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked for movement before we start.
- 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.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or send us an email.
Related advice
Towns and villages near Hartley Mauditt
What else we do in Hartley Mauditt
Why deal with it now?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Dealing with it early keeps the damage away from ceilings, floors and finishes. Around Hartley Mauditt, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
Why choose Mr Mastic in Hartley Mauditt
- ARBOMaster approved applicator
- A choice of colours where the product allows
- Trusted Arbo and Everbuild sealants
- We never seal over old sealant
See our cost guide and our reviews.
New build mastic in Hartley Mauditt: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you’ve bought a new home near Alton station, the sealant around baths, showers and frames is worth checking in the first year or two. Around Hartley Mauditt, as everywhere, new build mastic is only as good as the preparation behind it.
Hartley Mauditt is about 3 miles south-east of Alton, in Hampshire. From the centre of Hartley Mauditt to the outskirts, new build mastic is available for homes and businesses alike. 683 places in Hampshire are on our list, large and small. Our Portsmouth page covers work nearby (22 miles or so).
Jobs for new build mastic in GU34 is quoted and booked the same way as anywhere else. Other places close to Hartley Mauditt include East Worldham (1 mile north), Oakhanger (2 miles east), Upper Farringdon (2 miles west), Farringdon (2 miles west) and Chawton (2 miles north-west). Larger places within reach include Basingstoke (12 miles north-west), Farnborough (14 miles north-east), Fleet (12 miles north-east), Horndean (15 miles south), Aldershot (12 miles north-east) and Alton (3 miles north-west).
Local landmarks in Hartley Mauditt
The closest station to Hartley Mauditt is Alton station, roughly 2.5 miles north-west of the centre. Well-known places in the area include Alton Community Hospital (2.5 miles north-west) and The Romany Museum (1.6 miles south). The countryside around Hartley Mauditt includes Selborne Hill and Deadwater Valley.
What sealant work cannot fix
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Leaks from pipes, valves or wastes, which need a plumber
- Settlement cracks that need a surveyor
- Damaged fittings that need replacing
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Windows & doors
- Plot handovers
- Show homes
- Bathrooms & en suites
- Kitchens
- Skirting & floors
Keeping the joints in good condition
So the new joints stay in good condition:
- Record problems with dated pictures
- Ventilate bathrooms well, especially in the first year
- Report sealant problems to your builder during the snagging period
- Wipe joints with warm soapy water
Follow the cure time we give you before the area gets wet. Most silicones need around a day.
Do not let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you.
Quotes for new build mastic in Hartley Mauditt
For a quick quote, just ask. What matters most is:
- When we can work, for business premises
- Mould in or behind the old joints
- The old material and how stubborn it is
- Which sealant suits the joint
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Helping us quote
There’s no need for technical detail. Just tell us:
- What’s wrong with the joints now
- How we’d reach the joints
- Pictures of the joints, sent by email
- Where the property is
Want a quote for new build mastic? Please ring 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 quote before work begins.
Surface by surface
Skirting and floors
New homes often develop a gap between skirting and floor. We seal it with a flexible sealant that copes with the movement.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.