Hampshire · England
New-build mastic & snagging in Crowdhill, Hampshire
New build mastic across Crowdhill and nearby, with old sealant always removed completely and a 12-month guarantee.
- New-build shower sealant that has already split
- Skirting joints opening in the first winter
- Untidy sealant flagged on a snagging list
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Plumbing faults behind the sealant
- Settlement cracks that need a surveyor
- Movement caused by a poorly fitted tray or bath
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
Joints and surfaces we work on
- Windows & doors
- Bathrooms & en suites
- Show homes
- Kitchens
- Skirting & floors
- Plot handovers
About our new build mastic in Crowdhill
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. Both get the same care over preparation. If you are dealing with sealant that never bonded to the surface and skirting joints opening in the first winter, we can put it right, on skirting & floors, kitchens and windows & doors alike.
Older homes in small places like Crowdhill often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
We stand behind the work with a 12-month guarantee, so you are covered after we’ve gone.

- Where
- Crowdhill (SO50)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Show homes
We can refresh show-home sealant that has discoloured or been knocked. The old bead comes out and a clean new one goes in.
Kitchens
As a new house dries, worktops and walls shift a little, which opens gaps along the back. A fresh flexible bead closes them.
FAQs for Crowdhill
I let a flat near Eastleigh station. Can you help?
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 will give you a fixed price before work begins.
Can you do new build mastic in Crowdhill?
Yes. Our work covers London and the South East, and Crowdhill is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear quote.
How do I get a quote for new build mastic in Crowdhill?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or send us an email and let us know what needs doing and where.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Should I go to my builder first?
If you’re still within the builder’s snagging or warranty period, report it to them first. If it is not sorted, or keeps failing, get in touch with us.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Is it worth resealing while the house is still settling?
If the seal has failed and water is getting in, do it now. Hairline cosmetic gaps can wait until the house has settled.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Quotes for new build mastic in Crowdhill
For a quick quote, just ask. The main things that affect it are:
- The product the joint needs
- Any mould that needs treating
- Whether the work is at height
- How many rooms, windows or areas are involved
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Roughly how big the job is
- The problem you’ve noticed
- If someone has resealed it before
- How we’d reach the joints
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work and send you a clear quote.
More services for Crowdhill
For landlords and businesses
Landlords and agents in Crowdhill can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
We also work for property managers and facilities teams in Crowdhill and across Hampshire. Several sites can be quoted together, and we are fully insured for the work.
New build mastic around Crowdhill
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Eastleigh station, it’s worth checking the sealant early, while snags are still fresh. Around Crowdhill, as everywhere, new build mastic is only as good as the preparation behind it.
Crowdhill is about 2 miles north-east of Eastleigh, in Hampshire. From the centre of Crowdhill to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Across Hampshire, we cover 683 places, Crowdhill among them. We also work in Southampton, around 6 miles away.
Here we cover the SO50 postcode area for new build mastic. If you need new build mastic at a property on Chestnut Drive and Winchester Road or a nearby road, we can help. We also cover the places around Crowdhill: Fisher's Pond (1 mile north), Nob's Crook (1 mile north-west), Colden Common (1 mile north-west), Lord's Wood (1 mile north-west) and Bishopstoke (1 mile south-west). Larger places within reach include Winchester (6 miles north), Gosport (14 miles south-east), Fareham (10 miles south-east), Horndean (14 miles east), Totton (10 miles south-west) and Chandler's Ford (4 miles west).
What’s near Crowdhill
We work in homes and buildings around The King's School Senior and The Fox & Hounds pub. The closest station to Crowdhill is Eastleigh station, about 2.2 miles west of the centre. Well-known places in the area include Eastleigh Museum (2.3 miles west) and Moorgreen Hospital (3.6 miles south). Green spaces nearby include Twyford Down and Shawford Down.
How it works
The work is kept neat and contained to the joints we are treating, so you can carry on as normal. Expect the work to take a few hours for most snagging lists, longer for a run of plots, and we explain the cure time before we leave. Somewhere as small as Crowdhill, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely down to clean surfaces.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Advice
Why deal with it now?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. Older cottages and farmhouses around Crowdhill can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins, so you know where you stand.
Why book with us
- You choose the colour before work begins
- Anti-fungal sanitary silicone in wet areas
- Every job guaranteed for a year
- Any old sealant cut out fully, not covered over
DIY sealant or a professional job?
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.
A DIY attempt does not rule out a professional job. We cut it out and start again.
