Hampshire · England
New-build mastic & snagging in Medstead, Hampshire
We cover Medstead for plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Smeared, uneven beads picked up at snagging
- Frame joints opening as the plaster dries
- Sealant applied over dusty or wet surfaces
How we handle new build mastic in Medstead
Building dust is behind a lot of failed new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly instead of bonding to the dust. We work on windows & doors, kitchens and skirting & floors, and common reasons people get in touch are joints pulling apart as timber shrinks and beads laid onto grit and dust from the build.
For a new home in or near Medstead, it’s worth checking the sealant early. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
Big or small, you get the same 12-month guarantee in Medstead and across Hampshire.
- Where
- Medstead (GU34)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it cannot bond to what’s underneath. A lasting seal starts with removing the old one completely. In a smaller place like Medstead, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will go through it with you.
Why us?
- 20+ years of sealant experience
- We’re fully insured
- White, clear, grey or coloured to suit, where the product allows
- We agree the colour with you first
See our cost guide and what customers say.
When something else is needed
In fairness, some problems need a different trade:
- Leaks from pipes, valves or wastes, which need a plumber
- Your warranty claim itself, which is between you and the builder
- Cracked trays, tiles or worktops
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.
What we seal
- Skirting & floors
- Bathrooms & en suites
- Plot handovers
- Windows & doors
- Kitchens
- Show homes
Also near Medstead
What else we do in Medstead
Common questions in Medstead
Do you work for landlords with property near Alton station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover smaller places like Medstead?
Yes. Medstead is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Should I go to my builder first?
Your builder, if you are still in their snagging or warranty period. After that, or if their repair keeps failing, we can do it.
Do you guarantee your work?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Do you work through snagging lists?
Yes. Photos of each sealant item help us quote. Items that need a plumber, tiler or the builder are flagged.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected.
What affects the cost of new build mastic
You’ll get a clear quote before we start. It takes into account:
- Which sealant suits the joint
- Whether the work is at height
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and give you a clear quote before work begins.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What’s wrong with the joints now
- The address or postcode of the job
- How we’d reach the joints
- If someone has resealed it before
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, phone 0345 464 0079 or email us.
What happens on the day
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. The work usually takes anything from a few hours to several days, depending on the number of plots. In a smaller place like Medstead, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- Each joint is cleaned of dust and grit, then primed if required.
- New sealant suited to each joint is applied and tooled neatly.
- Each area is checked and left with its cure time.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
Get a quote
For new build mastic in Medstead, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Advice
Landlord and commercial work in Medstead
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Different surfaces, different methods
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Plot handovers
Send us the schedule and any sealant specification for a quote. Sealant work across the plot is covered.
What new build mastic looks like in Medstead
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Alton station, it’s worth checking the sealant early, while snags are still fresh. Around Medstead, as everywhere, new build mastic is only as good as the preparation behind it.
Medstead is about 4 miles south-west of Alton, in Hampshire. We provide new build mastic to homes and businesses in Medstead and nearby. Our area takes in 683 places across Hampshire, large and small. You can also see our page for Southampton, roughly 20 miles from Medstead.
Our applicators cover all of the GU34 postcode area for new build mastic and the streets around it. If you need new build mastic at a property on High Street, Five Ash Road and Stoney Lane or anywhere close by, our applicators can take on the job. We also cover the places around Medstead: Four Marks (1 mile south), South Town (1 mile north-west), Soldridge (1 mile south-west), New Copse (1 mile north) and Hattingley (2 miles north-west). We also work in nearby towns such as Basingstoke (10 miles north), Winchester (12 miles west), Fleet (14 miles north-east), Horndean (15 miles south), Alton (4 miles north-east) and Petersfield (9 miles south-east).
Around Medstead
Medstead’s nearest station is Alton station, about 4.4 miles north-east. Nearby you will also find Barton Castle (3 miles north-west) and Alton Community Hospital (3.1 miles north-east). For a walk, there’s Red Hill.
Looking after it afterwards
So the new joints stay in good condition:
- Use the extractor fan every time you shower
- Watch for new gaps as the house dries out
- Put sealant faults on your snagging list early
- Don’t wait for the house to settle if water is getting through
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.