Hampshire · England
New Build Mastic in East Stratton
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in East Stratton and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Messy sealant that spoils new finishes
- Second-fix sealing on new plots
- Skirting joints opening in the first winter
Joints and finishes in East Stratton homes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around East Stratton, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Micheldever station, the sealant around baths, showers and frames is worth checking in the first year or two.
East Stratton is about 8 miles north-east of Winchester, in Hampshire. Homes, rented property, offices and hotels in East Stratton is covered for new build mastic, old or new, large or small. The work is guaranteed for a year. 683 places in Hampshire are on our list. We also work in Southampton, around 18 miles away.
Every address in SO21 is within our area for new build mastic, from the main roads to the quietest streets. Streets in the area include Stratton Close, Stratton Lane and Baring Close, and we cover them all. Other places close to East Stratton include Micheldever (2 miles west), Northbrook (2 miles west), Totford (2 miles south-east), Northington (2 miles south-east) and Brown Candover (2 miles east). Within a short drive, we also cover Basingstoke (9 miles north-east), Winchester (8 miles south-west), Eastleigh (14 miles south), Andover (12 miles west), Chandler's Ford (14 miles south-west) and Alton (11 miles east).
Around East Stratton
Locally, jobs take us to homes and businesses close to The Northbrook Arms. The nearest railway station is Micheldever station, roughly 2.5 miles north-west. Other landmarks nearby include Barton Castle (4.9 miles east).
How we handle new build mastic in East Stratton
Dust is the enemy of new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the sealant actually sticks rather than sitting on a layer of grit. We work on bathrooms & en suites, skirting & floors and plot handovers, and the jobs we see most are shower seals failing in the first year or two and plot mastic for developers ahead of handover.
Work in a small place like East Stratton just needs the journey and access planning, and once on site, the job is the same as anywhere.
All our work comes with a 12-month guarantee, wherever you are in Hampshire.
- Location
- East Stratton (SO21)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Dealing with it early keeps the damage away from ceilings, floors and finishes. Around East Stratton, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- 20+ years of sealant experience
- A sealant colour to suit the surroundings
- Rated 4.9 stars on Google
- Fully insured
Read how sealant jobs are priced or our reviews.
Landlord and commercial work in East Stratton
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Ventilate bathrooms well, especially in the first year
- Clean sealant with mild detergent, not abrasives
- Avoid running a DIY bead over the old one
- Do not wait for the house to settle if water is getting through
Do not stand on the bath edge or the lip of the tray in the first few weeks. Report any movement in a bath or tray.
Do not let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you.
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Leaking fittings rather than failed sealant
- Disputes or warranty claims with your builder
- Settlement cracks that need a surveyor
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Plot handovers
- Show homes
- Kitchens
- Bathrooms & en suites
- Windows & doors
- Skirting & floors
How we quote for new build mastic
The price is agreed before any work begins. It takes into account:
- How many rooms, windows or areas are involved
- When we can work, for business premises
- Access and height
- Any mould that needs treating
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email and we’ll talk you through it.
Helping us quote
There’s no need for technical detail. Just tell us:
- Any access issues, like height or stairs
- The rough size of the job
- What’s wrong with the joints now
- Any previous sealing or DIY work
To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
The process
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like East Stratton, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- 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 if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we’re working on
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job, and photos are welcome.
Advice
Surface by surface
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk in a colour to suit.
Windows and doors
On new builds, external frame sealant can be patchy. We reseal it with a weatherproof, flexible sealant.
East Stratton questions
Is East Stratton in your area for new build mastic?
Yes. We work across London and the South East, and East Stratton is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll send you a clear quote.
Do you work for landlords with property near Micheldever station?
Yes. We work for letting agents and landlords as well as homeowners. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Who should fix failed sealant in a new build?
If you are still within the builder’s snagging or warranty period, report it to them first. If they’re slow or the fix does not last, we can help.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you when we finish.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.