Hampshire · England
New-build mastic & snagging in Martin, Hampshire
New build mastic for Martin, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Skirting joints opening in the first winter
- Cracked sealant around new window and door frames
- New-build shower sealant that has already split
New build mastic for homes and businesses in Martin
We work in new homes and on new-build sites across Martin. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. We work on show homes, plot handovers and kitchens, and people most often call us about leaking shower tray seals in a new home and worktop and upstand sealant coming away.
Somewhere as small as Martin, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or drop us an email.
- Place
- Martin (SP6)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Avoid running a DIY bead over the old one
- Raise failed sealant with the developer while you’re covered
- Keep pictures and emails about snagging items
- Don’t wait for the house to settle if water is getting through
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing so moisture doesn’t sit on the sealant.
Report failed sealant to the builder while you are in the snagging period. After that, putting it right may fall to you.
When to call us in Martin
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints aren’t always given time to dry first.
The problems people normally mention when they call are:
- Kitchen sealant that has pulled off the wall
- Leaking shower tray seals in a new home
- Sealant applied over dusty or wet surfaces
- Joints pulling apart as timber shrinks
In and around Martin, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- The length of the guarantee
- Whether they’re fully insured
- Whether they seal over old material or remove it
- What the cure time is
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours for most snagging lists, longer for a run of plots. In a small place like Martin, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
How to prepare
- Mention any parking rules near the property
- Let us know about stairs, lifts or work at height
- On commercial sites, let us know about site rules
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
Landlord and commercial work in Martin
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Joints and finishes in Martin homes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For jobs in and around Martin, choosing the right material for each joint is as important as a tidy finish.
Martin is in Hampshire. Our applicators cover new build mastic for homes and businesses in Martin, as part of our work across Hampshire. Martin is one of 683 towns and villages in Hampshire we cover for new build mastic. You can also see our page for Southampton, about 23 miles away.
Here we cover the SP6 postcode area for new build mastic. Whether your property is on Townsend Lane and Downview Road or anywhere close by, we can help. Other places close to Martin include New Forest (1 mile south-west), Rockbourne (3 miles east) and Damerham (3 miles south-east). Further out, we also cover Ringwood (11 miles south-east), Fordingbridge (6 miles south-east), St Leonards (11 miles south), Alderholt (6 miles south-east), Poulner (11 miles south-east) and Ashley Heath (10 miles south).
What’s near Martin
A little further out are Cranborne Castle Hill (4.5 miles south). Green spaces nearby include Western Downs.
What happens if it’s left?
A hairline gap at a skirting can wait, but a leaking seal can’t. Not sure whether yours can wait? You can ring 0345 464 0079 or send us an email with a few pictures and we will tell you. Around Martin, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why Martin customers choose us
- Fully insured
- Quality sealants from Arbo and Everbuild
- Colour picked to suit the job
- 180+ five-star Google reviews
How we quote for new build mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- Any mould that needs treating
- The size of the job
- How many areas need sealing
- Whether the work is at height
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
- If someone has resealed it before
- Roughly how big the job is
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Also near Martin
Other services in Martin
Surface by surface
Kitchens
Sink joints are wet all the time. We use a sealant suited to kitchens suited to the job.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. We reseal it with a weatherproof, flexible sealant.
Martin questions
Is there a guarantee on new build mastic in Martin?
All our work, in Martin and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Will you come out to Martin?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Are you fully insured?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Where is Mr Mastic based?
We work from Crawley. Our applicators cover Martin.
Do you take on second-fix sealing for builders?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send the schedule and any specification and we’ll give you a quote.