Hampshire · England
Alderholt New Build Mastic
Professional new build mastic in and around Alderholt, with old sealant always removed completely and a 12-month guarantee.
- Messy sealant that spoils new finishes
- Sealant work across a run of new homes
- Sealant applied over dusty or wet surfaces
What the job involves on each surface
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Kitchens
Worktop, upstand and sink joints in new kitchens often get a hurried bead. We take it out and reseal neatly, colour-matched where it shows.
About our new build mastic in Alderholt
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 cracked caulk along new skirting and leaking shower tray seals in a new home, we can put it right, whatever the surface.
Where new homes go up in smaller places like Alderholt, it’s often a small development or a single plot. The sealant around baths, showers, frames and skirtings needs to be right from the start.
Your job is guaranteed for a year, as with all our work.
- Place
- Alderholt (SP6)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
DIY kits don’t solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Proper removal and preparation are what make it last. In a smaller place like Alderholt, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why Alderholt customers choose us
- Rated 4.9 stars on Google
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
- White, clear, grey or another colour, product permitting
Take a look at what affects the cost or our reviews.
What we can’t put right
We won’t take on work that won’t last, so these are the limits:
- Deciding who is responsible under a builder’s warranty
- Movement caused by a poorly fitted tray or bath
- Leaking fittings rather than failed sealant
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Skirting & floors
- Kitchens
- Show homes
- Bathrooms & en suites
- Windows & doors
- Plot handovers
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to several days, depending on the number of plots. In a smaller place like Alderholt, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely.
- 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 parking rules near the property
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
How to get a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. Photos by email help us understand the job.
Read more
Quotes for new build mastic in Alderholt
For a quick quote, just ask. The main things that affect it are:
- Which sealant suits the joint
- The number of rooms or windows
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- The problem you’ve noticed
- Any access issues, like height or stairs
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or send us an email.
Landlords, agents and businesses in Alderholt
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
If you manage several properties in or around Alderholt, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
FAQs for Alderholt
Is new build mastic in Alderholt guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is Alderholt within the area you cover?
Yes, Alderholt is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
When is the best time to reseal in a new build?
It depends on whether water is getting through. Failed seals in wet areas need doing now, while small cosmetic gaps can wait a while.
I’m a tenant. Can you help?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Can you match the sealant colour to my new kitchen or bathroom?
Most bathroom joints are white or clear, but other colours are available. We match the colour to the finish before we begin.
Can I do it myself?
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.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
New build mastic around Alderholt
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.
Around Alderholt, as everywhere, new build mastic is only as good as the preparation behind it. For jobs in and around Alderholt, choosing the right material for each joint is as important as a tidy finish.
Alderholt is in Hampshire. From the centre of Alderholt to the outskirts, new build mastic is available for homes and businesses alike. Alderholt is one of 683 towns and villages in Hampshire where we work. Our Southampton page covers work nearby, about 19 miles away.
Every address in SP6 is covered for new build mastic. We cover properties on Station Road, Antell's Way and South Hill and the roads around them. Main roads around Alderholt include the B3078, which makes travel easy. Other places close to Alderholt include Sandleheath (1 mile north), Ashford (2 miles north-east), Broxhill (2 miles west), Damerham (2 miles north-west) and Rockbourne (4 miles north). Larger places within reach include Totton (14 miles east), New Milton (13 miles south-east), Ringwood (5 miles south-east), Barton on Sea (14 miles south-east), Ashley (13 miles south-east) and St Leonards (6 miles south).
Landmarks near Alderholt
Locally, jobs take us to homes and businesses close to The Churchill Arms and The Burgate School and Sixth Form, among other places. Well-known places in the area include Godshill Castle Hill (3.6 miles north-east) and Fordingbridge Doll Museum (2 miles north-east). Green spaces nearby include Blashford Lakes and Linbrook Lake.