Portsmouth · England
New-build mastic & snagging in Kingston, Portsmouth
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Kingston. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Frame joints opening as the plaster dries
- Cracks appearing as a new home settles
- Cracked caulk along new skirting
New build mastic in Kingston, done properly
New homes move as they dry out. Timber shrinks, plaster dries and baths and trays bed down, so sealant that was laid quickly before handover often cracks. If you have sealant work across a run of new homes and gaps behind new kitchen upstands, we can put it right, whatever the surface.
In and around Kingston, floors range from older timber boards to tiles and newer finishes, from timber that moves with the seasons to tiles laid on concrete. Skirting and threshold joints need a sealant that suits the floor.
Each job carries a 12-month guarantee.
- Where
- Kingston (PO1, PO3, PO4)
- Region
- Portsmouth
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Questions from Kingston
Is Kingston within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Kingston in your area for new build mastic?
Yes, Kingston 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.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
What should I tell you?
A short description and the location, plus photos if you have them. We’ll ask anything else we need to know.
How long does new build mastic take?
A typical job takes anything from a few hours to several days, depending on the number of plots, including preparation and clearing up. Your quote will say how long we expect yours to take.
Do you use white or clear sealant?
We use white, clear or a colour to suit the finishes. Let us know your preference when you ask for a quote.
Is there a guarantee?
Yes, for a year. If anything is not right with the work within the year, let us know and we’ll sort it.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
New build mastic in Kingston: local notes
Kingston 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Fratton station, it’s worth checking the sealant early, while snags are still fresh. In and around Kingston, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Kingston is about 1 mile south-east of Portsmouth, in Portsmouth. We carry out new build mastic for householders, landlords and businesses in Kingston and nearby. Kingston is one of 19 places in Portsmouth where we work for new build mastic.
Here we cover the PO1, PO3 and PO4 postcode area for new build mastic. Streets in the area include Renny Road, Clive Road and Union Road, and we cover them all. Main roads around Kingston include the A288. If you’re just outside Kingston, we cover Fratton (1 mile south-west), Baffins (1 mile north-east), Copnor (1 mile north), Portsmouth (1 mile north-west) and Landport (1 mile west). Within a short drive, we also cover Wymering (3 miles north), Paulsgrove (3 miles north), Cosham (3 miles north), Drayton (3 miles north) and Farlington (3 miles north-east).
Landmarks near Kingston
We work in homes and buildings around Langstone Infant School, Graham Arms and Alexandra Park and the streets around them. The nearest railway station is Fratton station, about 0.5 miles south-west. Well-known places in the area include Charles Dickens Birthplace Museum (1 mile west) and St Mary's Hospital (less than half a mile south-east). Not far away are Milton Locks and Portsdown Hill.
Landlords, agents and businesses in Kingston
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
We also work for property managers and facilities teams in Kingston and across Portsmouth. We can quote a run of properties together, and we are fully insured.
Surface by surface
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. A proper reseal keeps water in the tray.
Skirting and floors
Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.
Looking after it afterwards
To keep the joints looking good and working properly:
- Keep photos and emails about snagging items
- Do not seal over failed sealant yourself
- Use the extractor fan every time you shower
- Watch for new gaps as the house dries out
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents, which can damage the surface.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant and protects the rest of the house.
How we quote for new build mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Access and height
- The product the joint needs
- Working hours on commercial sites
- The size of the job
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or email us.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Whether it’s a home or a business
- The problem you’ve noticed
- Whether it has been sealed before
- Photos by email, if that is easy
If you’re in Kingston and need new build mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Also in Kingston
Why deal with it now?
Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times to plan around. Around Kingston, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Why Kingston customers choose us
- You choose the colour before work begins
- A 12-month guarantee on all work
- Anti-fungal silicone where joints get wet
- Full insurance on every job
Read how sealant jobs are priced and our reviews.
DIY sealant or a professional job?
If you’re 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 doesn’t work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
The process
On the day, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. The work generally takes a few hours in a single home. Parking around Kingston is normally easier than in a town centre, but mention any lanes, gates or long drives. 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 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.
Before we arrive
- Clear items away from the joints we’re working on
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Every job is quoted individually. Just phone 0345 464 0079 or email us with the details.