Hampshire · England
New-build mastic & snagging in Whitchurch, Hampshire
Problem with your new-build sealant joints in Whitchurch? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Gaps opening as the house dries out and settles
- Smeared, uneven beads picked up at snagging
- Internal frame sealant that has split
Whitchurch questions
Do you work for landlords with property near Whitchurch (Hampshire) station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or email us with the details for a clear quote.
Can you do new build mastic in Whitchurch?
Yes. We work across London and the South East, and Whitchurch is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Do you work through snagging lists?
Yes. Send us the sealant items on the list, with photos if you can and we will give you a quote. We’ll tell you if anything on it isn’t a sealant job.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job, wherever you are.
What colour sealant will you use?
The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.
Can new sealant go on top of the old bead?
No. Fresh silicone doesn’t stick to the old layer, so sealing over the top fails quickly. We cut the old bead out completely.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours in a single home. We will tell you when we quote.
Is it worth resealing while the house is still settling?
That depends on the joint. Failed seals in wet areas need doing now, while small cosmetic gaps can wait a while.
New build mastic in Whitchurch, done properly
Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a failed shower or bath seal shouldn’t wait. We work on show homes, windows & doors and skirting & floors, and the jobs we see most are messy sealant that spoils new finishes and sealant that never bonded to the surface.
Homes around Whitchurch range from older cottages to newer houses, and their floors range just as widely, from timber that moves with the seasons to tiles laid on concrete. The sealant at skirtings and thresholds has to suit the floor it meets.
There’s a 12-month guarantee on every job, large or small.
- Location
- Whitchurch (RG28)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
The process
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for most snagging lists, longer for a run of plots. In a smaller place like Whitchurch, 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, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
How to get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work and send you a clear quote.
Advice
Looking after it afterwards
So the new joints stay in good condition:
- Put sealant faults on your snagging list early
- Check bath and shower seals every few months as the house settles
- Resist patching a failed seal with a tube from the DIY shop
- Keep photos and emails about snagging items
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
Why deal with it now?
Resealing everything on a snagging list in one visit is usually simpler than chasing joints one at a time. You get one visit and one clear quote to plan around. In an older home around Whitchurch, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Every job is a little different, so we quote each one individually. 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.
Why choose Mr Mastic in Whitchurch
- White, clear, grey or another colour, product permitting
- A 12-month guarantee on all work
- Any old sealant cut out fully, not covered over
- Experience in homes, commercial sites and hotels
See our cost guide and what customers say.
Signs you need new build mastic in Whitchurch
When the heating goes on in the first winter, the house dries fast. Gaps open along skirting, frames and worktops and cracked sealant shows up.
Common reasons people contact us are:
- New-build shower sealant that has already split
- Frame joints opening as the plaster dries
- Sealant applied over dusty or wet surfaces
- Cracked caulk along new skirting
If you’ve bought a new home near Whitchurch (Hampshire) station, the sealant around baths, showers and frames is worth checking in the first year or two.
Comparing quotes
- What happens if the job turns out different
- How long to leave it before use
- How much experience the applicator has
- Whether they’re fully insured
Places near Whitchurch
Other services in Whitchurch
What new build mastic looks like in Whitchurch
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.
Around Whitchurch, as everywhere, new build mastic is only as good as the preparation behind it.
Whitchurch is about 6 miles east of Andover, in Hampshire. We provide new build mastic to homes and businesses in Whitchurch and the surrounding area. Whitchurch is one of 683 towns and villages in Hampshire we cover for new build mastic. There’s also a page for Southampton, about 22 miles away.
All of RG28 is within our area for new build mastic. We cover properties on London Road, Station Road and London Street and the roads around them. Whitchurch sits on or near the B3400, so getting to you is simple. Close by, we work in Wells-in-the-Field (1 mile east), Freefolk (1 mile east), Cole Henley (2 miles north), Firgo (2 miles south) and Hurstbourne Priors (2 miles south-west). Larger places within reach include Basingstoke (10 miles east), Winchester (12 miles south), Andover (6 miles west), Tadley (12 miles north-east), Hyde (11 miles south) and Popley (12 miles east).
Around Whitchurch
We work in homes and buildings around The Red House Public House and Testbourne Community School, among other places. For rail, the closest station is Whitchurch (Hampshire) station, roughly 0.5 miles north of the centre.
What sealant work cannot fix
Before you book, it’s worth knowing the limits too:
- Broken tiles or a split tray
- Deciding who is responsible under a builder’s warranty
- Baths and trays that move too much for sealant to cope with
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Bathrooms & en suites
- Show homes
- Plot handovers
- Skirting & floors
- Kitchens
- Windows & doors
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.