Hampshire · England
New-build mastic & snagging in Upper Farringdon, Hampshire
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Upper Farringdon and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps behind new kitchen upstands
- Skirting joints opening in the first winter
- Cracks appearing as a new home settles
How we handle new build mastic in Upper Farringdon
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a seal that is letting water through needs doing now. We work on kitchens, windows & doors and show homes, and people most often call us about sealant applied over dusty or wet surfaces and messy sealant that spoils new finishes.
Somewhere as small as Upper Farringdon, 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.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.

- Location
- Upper Farringdon (GU34)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
Housing providers, facilities teams and property managers book us too in Upper Farringdon and across Hampshire. We can quote a run of properties together, and we are fully insured for the work.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Disputes or warranty claims with your builder
- Cracking that points to a structural problem
- Cracked trays, tiles or worktops
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before you book.
What we seal
- Show homes
- Skirting & floors
- Windows & doors
- Plot handovers
- Kitchens
- Bathrooms & en suites
What we do, step by step
The work is kept neat and contained to the area we are working on. Expect the work to take anything from a few hours to several days, depending on the number of plots. In a small place like Upper Farringdon, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Finally, each room is checked and you’re given the cure time.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
Ask for a quote
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Advice
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
What happens if it’s left?
A hairline gap at a skirting can wait, but a leaking seal can’t. If you are unsure which you have, call 0345 464 0079 or send us an email with photos. Older cottages and farmhouses around Upper Farringdon can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why book with us
- A choice of colours where the product allows
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
- Tidy, careful work
Upper Farringdon: your questions answered
Can you help a landlord with a rental near Alton station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Upper Farringdon in your area for new build mastic?
Yes. We work across London and the South East, and Upper Farringdon is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
When is the best time to reseal in a new build?
It depends on whether water is getting through. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that normally means someone at home.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Will you just run a new bead over the existing one?
No. Over-sealing traps mould and water and soon fails. All the old sealant comes out before we start.
What affects the cost of new build mastic
The price is agreed before any work begins. It’s based on:
- The number and length of the joints
- How many areas need sealing
- The type of sealant required
- Working hours on commercial sites
Doing several joints on one visit is usually more efficient than separate visits. You will get one clear quote for the whole job.
What to tell us for a quote
To help us quote quickly, please include:
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
- Pictures of the joints, sent by email
For new build mastic in Upper Farringdon, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Places near Upper Farringdon
Other services in Upper Farringdon
Joints and finishes in Upper Farringdon 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.
Around Upper Farringdon, as everywhere, new build mastic is only as good as the preparation behind it. 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.
Upper Farringdon is about 3 miles south of Alton, in Hampshire. Homes, rented property, offices and hotels in Upper Farringdon is covered for new build mastic, old or new, large or small. Every job comes with our one-year guarantee. Upper Farringdon is one of 683 towns and villages in Hampshire we cover. Our Portsmouth page covers work nearby (21 miles or so).
We work across the GU34 postcode area for new build mastic and the streets around it. That includes homes and businesses on Church Road, Crows Lane and Gaston Lane. If you are just outside Upper Farringdon, we cover Farringdon (1 mile south-west), Lower Farringdon (1 mile west), Chawton (2 miles north), Hartley Mauditt (2 miles east) and Alton (3 miles north). Further out, we also cover Basingstoke (12 miles north-west), Winchester (15 miles west), Fleet (13 miles north-east), Horndean (14 miles south), Aldershot (13 miles north-east) and Petersfield (8 miles south).
Near you in Upper Farringdon
Around Upper Farringdon, our work takes us to homes and buildings near Rose and Crown Inn. The closest station to Upper Farringdon is Alton station, roughly 2.8 miles north. A little further out are The Romany Museum (2.1 miles south-east) and Alton Community Hospital (1.9 miles north). For a walk, there’s Selborne Hill.
What the job involves on each 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.
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. A proper reseal keeps water in the tray.
