Hampshire · England
New-build mastic & snagging in Downton, Hampshire
Problem with your new-build sealant joints in Downton? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Second-fix sealing on new plots
- Worktop and upstand sealant coming away
- Sealant applied over dusty or wet surfaces
New build mastic in Downton, done properly
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. In both, preparation makes the difference. If you are dealing with cracked caulk along new skirting and untidy sealant flagged on a snagging list, we can help.
In a village or hamlet like Downton, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Each still needs its sealant and floor joints finished properly.
The work is covered for a year after we finish. If anything is not right with it, call 0345 464 0079 or drop us an email.
- Place
- Downton (SO41)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Don’t wait for the house to settle if water is getting through
- Clean sealant with mild detergent, not abrasives
- Use the extractor fan every time you shower
- Avoid running a DIY bead over the old one
Avoid standing on the rim of the bath or the edge of the tray. If a bath or tray moves when you stand in it, get it looked at.
Early snagging is easier snagging. Left alone, a small crack can become a leak over time.
Your questions about new build mastic in Downton
Do you work for landlords with property near New Milton station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Do you cover Downton for new build mastic?
Yes, Downton is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Why has my new-build shower seal failed already?
New homes dry out and move in their first couple of years, and sealant is often rushed onto dusty, unprimed surfaces. Both lead to early failure.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
What colour sealant will you use?
The colour is chosen to suit the tiles, worktop or frame. Tell us what you’d like when you get a quote.
How long will you be here?
Most jobs take a few hours in a single home, including the preparation. We will confirm how long when we quote.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Also near Downton
Other services in Downton
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Damaged fittings that need replacing
- Leaks from pipes, valves or wastes, which need a plumber
- Cracking that points to a structural problem
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Downton
- Kitchens
- Plot handovers
- Skirting & floors
- Windows & doors
- Bathrooms & en suites
- Show homes
Different surfaces, different methods
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
Kitchens
New-kitchen sealant is often applied in a rush. We remove it and reseal with a kitchen-suitable sealant.
What affects the quote in Downton
There’s no set price list, because jobs vary so much. What we look at:
- Any mould that needs treating
- How many areas need sealing
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email and we’ll talk you through it.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- A few photos by email, if you can
- How many joints, rooms or windows are involved
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Leave it or put it right?
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times to plan around. Where a wall is exposed, as many are in small places like Downton, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why Downton customers choose us
- Fully insured
- More than 20 years in sealant work
- Quality sealants from Arbo and Everbuild
- 4.9 on Google from 180+ five-star reviews
Take a look at our cost guide and customer reviews.
How the visit works
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the number of plots. In a small place like Downton, 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 going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
How to prepare
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
Ask for a quote
If you’re in Downton and need new build mastic, 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 work begins.
Read more
What new build mastic looks like in Downton
Downton is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Downton, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near New Milton station, the sealant around baths, showers and frames is worth checking in the first year or two.
Downton is about 3 miles west of Lymington, in Hampshire. Every kind of property in Downton can book us for new build mastic, old or new, large or small. The work is guaranteed for a year. 683 places in Hampshire are on our list. For nearby work, see our Southampton page, about 16 miles away.
All of SO41 is covered for new build mastic, from the main roads to the quietest streets. New build mastic is available to properties on Hordle Lane and Shorefield Road. Other places close to Downton include Leagreen (1 mile east), Hordle (1 mile north), Ashley (2 miles north-west), Barton on Sea (2 miles west) and New Milton (2 miles north-west). Larger places within reach include Totton (13 miles north), Lymington (3 miles east), Hythe (13 miles north-east), Ringwood (10 miles north-west), Dibden Purlieu (12 miles north-east) and Marchwood (13 miles north-east).
Landmarks near Downton
Typical jobs here are in homes near The Arnewood School, among other places. The nearest railway station is New Milton station, roughly 2 miles north-west. Well-known places in the area include Lymington New Forest Hospital (3.7 miles north-east) and Sammy Miller Motorcycle Museum (2.9 miles north-west). Green spaces nearby include Milford on Sea LNR.