Hampshire · England
Ashfield New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for Ashfield, backed by a one-year guarantee. Ask us for a quote.
- Worktop and upstand sealant coming away
- Internal frame sealant that has split
- Joints pulling apart as timber shrinks
New build mastic in Ashfield, done properly
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover using the right product for each joint. If you’re dealing with internal frame sealant that has split and gaps between new skirting and floors, we can help.
Work in a small place like Ashfield just needs the journey and access planning, and the work itself is the same as on any site.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Location
- Ashfield (SO51, SO16)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
Questions from Ashfield
I let a flat near Romsey station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you cover Ashfield for new build mastic?
Yes, Ashfield is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we’ll give you a clear price.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
My new home is still under warranty. Should I contact you?
While the snagging or warranty period runs, the builder should be your first contact. If it isn’t sorted, or keeps failing, get in touch with us.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
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.
Can you reseal over the builder’s sealant?
No. Fresh silicone does not stick to the old layer, so it soon lifts and traps water. The old sealant always comes out first.
Is it normal for sealant to crack in a new home?
There are generally two causes: movement as the house dries and settles, and sealant laid onto dust without primer. A proper reseal deals with both.
When to call us in Ashfield
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak, and the problem shows up after you move in.
Any of these means the joints need attention:
- Gaps behind new kitchen upstands
- Internal frame sealant that has split
- Skirting joints opening in the first winter
- Smeared, uneven beads picked up at snagging
For new homes near Romsey station, it’s worth checking the sealant early, while snags are still fresh.
Questions to ask before booking
- Whether VAT is included
- Who turns up on the day
- Which sealant they’ll use, and why
- When the joint can take water or movement
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Get a leaking seal dealt with right away
- Wait for the cure time before using a resealed shower
- Ventilate bathrooms well, especially in the first year
- Resist patching a failed seal with a tube from the DIY shop
Don’t stand on the bath edge or the lip of the tray in the first few weeks. Report any movement in a bath or tray.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and protects the rest of the house.
New homes and floors in Ashfield
Ashfield 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. 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.
In and around Ashfield, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Ashfield is about 2 miles south of Romsey, in Hampshire. Ashfield gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Hampshire coverage runs to 683 places, Ashfield among them.
Postcode districts we cover here for new build mastic: SO51 and SO16. If you need new build mastic at a property on Lee Lane, Lee Church Lane and Coldharbour Lane or anywhere close by, we can help. Close by, we work in Lee (1 mile west), Toothill (1 mile east), Upton (1 mile south-east), Rownhams (1 mile south-east) and Nursling (1 mile south-east). We also work in nearby towns such as Winchester (10 miles north-east), Eastleigh (6 miles east), Fareham (14 miles south-east), Totton (3 miles south), Chandler's Ford (4 miles north-east) and Hedge End (8 miles east).
What’s near Ashfield
For rail, the closest station is Romsey station, roughly 2.3 miles north of the centre. Nearby you’ll also find King Johns House (2.3 miles north) and Romsey Community Hospital (2.2 miles north). Green spaces nearby include Testwood Lakes.
Other services in Ashfield
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Cracked trays, tiles or worktops
- A tray or bath that is not properly supported, until it’s fixed
- Plumbing faults behind the sealant
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Windows & doors
- Skirting & floors
- Bathrooms & en suites
- Kitchens
- Show homes
- Plot handovers
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.
How the job changes by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out and baths are filled before sealing.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
The process
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for most snagging lists, longer for a run of plots. Somewhere as small as Ashfield, access is often the only tricky part. 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.
- Failed or untidy sealant is cut out completely.
- Surfaces are cleaned of building dust and primed where needed.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Finally, each room is checked and you are given the cure time.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
- Move anything stored near the joints
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.