Surrey · England
Haslemere New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Haslemere. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Plot mastic for developers ahead of handover
- Skirting joints opening in the first winter
- Gaps opening as the house dries out and settles
New build mastic in Haslemere
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that is reasonable, but a seal that’s letting water through needs doing now. If you’re dealing with new-build shower sealant that has already split and second-fix sealing on new plots, we can help, whatever the surface.
Where new homes go up in smaller places like Haslemere, it’s often a small development or a single plot. The sealant around baths, showers, frames and skirtings needs to be right from the start.
All our work comes with our one-year guarantee, wherever you are in Surrey.

- Where
- Haslemere (GU27)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Signs you need new build mastic in Haslemere
A new house holds a lot of water from the build, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart, and sealant that cannot keep up splits.
The problems people normally mention when they call are:
- New-build shower sealant that has already split
- Second-fix sealing on new plots
- Cracked caulk along new skirting
- Gaps opening as the house dries out and settles
If you’ve bought a new home near Haslemere station, the sealant around baths, showers and frames is worth checking in the first year or two.
Comparing quotes
- The length of the guarantee
- How much experience the applicator has
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
Landlords, agents and businesses in Haslemere
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
New build mastic in Haslemere: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Haslemere, as everywhere, new build mastic is only as good as the preparation behind it.
Haslemere is about 11 miles south of Aldershot, in Surrey. We carry out new build mastic for homeowners, landlords and businesses in Haslemere and the surrounding area. Across Surrey, we cover 395 places, Haslemere among them. There’s also a page for Crawley, about 23 miles away.
Here we cover the GU27 postcode area for new build mastic. Local streets include Church Road, High Street and Longdene Road, all of which we cover. Being close to the A286 and A287, Haslemere is simple for us to get to. If you’re just outside Haslemere, we cover Shottermill (1 mile west), Woolmer Hill (1 mile south-west), Hammer (1 mile west), Bramshott Chase (2 miles north-west) and Kingsley Green (2 miles south). We also work in nearby towns such as Guildford (13 miles north-east), Farnham (9 miles north), Cranleigh (11 miles east), Ash (11 miles north), Godalming (8 miles north-east) and Farncombe (9 miles north-east).
What’s near Haslemere
In Haslemere, that means homes and buildings near Woolmer Hill School, The White Lion Public House and Royal School Haslemere and the streets around them. Haslemere has its own railway station: Haslemere station. Other landmarks nearby include Haslemere and District Hospital (0.6 miles north-east). Open spaces near Haslemere include Upper Lake and Lynchmere Commons.
How it works
Every visit runs the same way: we check the joints, protect the area around them, do the work and tidy away. Most jobs take anything from a few hours to several days, depending on the number of plots. A visit to Haslemere is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
- Clear the area around the work
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details, and pictures are welcome.
Advice
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Don’t seal over failed sealant yourself
- Report sealant problems to your builder during the snagging period
- Look at the sealant regularly in the first couple of years
- Open a window or run the fan after bathing
Clean the sealant with a mild detergent and a soft cloth. Avoid abrasive pads and strong solvents.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
What else we do in Haslemere
What affects the quote in Haslemere
Every job gets its own quote. These are the things that affect it:
- Which sealant suits the joint
- Any working-time requirements on site
- Access and height
- Whether there’s mould to deal with
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
To make quoting easier, please include:
- How we’d reach the joints
- The address or postcode of the job
- A few pictures by email, if you can
- Whether it has been sealed before
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
What we can’t put right
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Deciding who is responsible under a builder’s warranty
- Plumbing faults behind the sealant
- Baths and trays that move too much for sealant to cope with
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before booking.
Where we work in Haslemere
- Plot handovers
- Kitchens
- Skirting & floors
- Bathrooms & en suites
- Windows & doors
- Show homes
Common questions in Haslemere
I let a flat near Haslemere station. Can you help?
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 quote.
Can you do new build mastic in Haslemere?
Yes. We work across London and the South East, and Haslemere is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Is it worth resealing while the house is still settling?
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.
Do you have insurance?
Yes, we’re fully insured.
Do you take out the old sealant first?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Why does sealant fail so quickly in new builds?
A new house dries and settles for a year or two, and sealant is often rushed onto dusty, unprimed surfaces. Both lead to early failure.
How much does new build mastic cost in Haslemere?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
How the job changes by surface
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. We reseal once the old bead is fully out and baths are filled before sealing.
