Hampshire · England
New-build mastic & snagging in South Ham, Hampshire
New build mastic across South Ham and nearby, with old sealant always removed completely.
- New-build shower sealant that has already split
- Cracks appearing as a new home settles
- Untidy sealant flagged on a snagging list
How to look after the new joints
Looking after new joints is easy:
- Act quickly if a seal starts to leak
- Clean sealant with mild detergent, not abrasives
- Follow the cure time we give you
- Photograph failed sealant before it’s redone
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries and can be resealed later.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small.
How we handle new build mastic in South Ham
Dust is the enemy of new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the new bead bonds properly instead of bonding to the dust. If you’re dealing with joints pulling apart as timber shrinks and sealant applied over dusty or wet surfaces, we can put it right, whatever the surface.
Homes around South Ham range from older cottages to newer houses, and their floors range just as widely, each moving in its own way. Skirting and threshold joints need a sealant that suits the floor.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Location
- South Ham (RG22, RG21, RG23)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- A tray or bath that is not properly supported, until it’s fixed
- Settlement cracks that need a surveyor
- Broken tiles or a split tray
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
Joints and surfaces we work on
- Skirting & floors
- Windows & doors
- Show homes
- Kitchens
- Bathrooms & en suites
- Plot handovers
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for most snagging lists, longer for a run of plots, and the area is left clean. In a smaller place like South Ham, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- 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, 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.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
- Clear the area around the work
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or email us.
Related advice
Common questions in South Ham
Do you work for landlords with property near Basingstoke station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Do you cover smaller places like South Ham?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you fully insured?
Yes, we are fully insured for domestic and commercial work.
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 is not sorted, or keeps failing, get in touch with us.
How much does new build mastic cost in South Ham?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or email us with a short description of the job.
Can you do plot mastic on a new development?
Yes. We seal plots to the developer’s programme. Get in touch with the number of plots and the scope for a clear quote.
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.
How long does the job take?
It depends on the size of the job, but most jobs take anything from a few hours to several days, depending on the number of plots. We’ll give you a better idea when we quote.
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.
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant that suits the frame.
New build mastic around South Ham
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around South Ham, as everywhere, new build mastic is only as good as the preparation behind it.
South Ham is about 1 mile south-west of Basingstoke, in Hampshire. Every kind of property in South Ham can book us for new build mastic, old or new, large or small. The work is guaranteed for a year. South Ham is one of 683 places in Hampshire we cover. There’s also a page for Reading, roughly 14 miles from South Ham.
Work in RG22, RG21 and RG23 works the same way as everywhere else we cover. Whether your property is on Pheby Road, Wella Road and Lennox Road or a nearby road, our applicators can take on the job. Close by, we work in Brighton Hill (1 mile south), Basingstoke (1 mile north-east), Winklebury (1 mile north-west), Buckskin (1 mile west) and Worting (1 mile west). Within a short drive, we also cover Farnborough (15 miles east), Fleet (12 miles east), Aldershot (15 miles east), Alton (10 miles south-east), Yateley (13 miles north-east) and Tadley (7 miles north).
What’s near South Ham
Locally, jobs take us to homes and businesses close to Aldworth School, Coppice Spring School and Eastrop Park. For rail, the closest station is Basingstoke station, roughly 1.2 miles north-east. Well-known places in the area include Basingstoke and North Hampshire Hospital (1.5 miles north) and Basing House (2.7 miles east). Open spaces near South Ham include Farleigh Hill and Daneshill Park Woods.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
What we are called out for in South Ham
Once people move in, baths and trays take weight and bed down. A bath sealed empty drops slightly when filled, straining the joint and the sealant may split.
Keep an eye out for any of the following:
- New-build shower sealant that has already split
- Cracked sealant around new window and door frames
- Sealant work across a run of new homes
- Smeared, uneven beads picked up at snagging
For new homes near Basingstoke station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- Who turns up on the day
- What the quote includes, VAT included or not
- What preparation is included
- Whether they’re fully insured
Why act early in South Ham
A hairline gap at a skirting can wait, but a leaking seal can’t. If you’re unsure which you have, call 0345 464 0079 or drop us an email with pictures and we’ll tell you. In a smaller place like South Ham, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and give you a clear price before any work starts.
Why us?
- Domestic, commercial and hotel work
- Anti-fungal sanitary silicone in wet areas
- Trusted Arbo and Everbuild sealants
- More than 20 years in sealant work
See what affects the cost or our reviews.