Hampshire · England
New-build mastic & snagging in Harestock, Hampshire
New build mastic across Harestock and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Sealant applied over dusty or wet surfaces
- Gaps behind new kitchen upstands
- Sealant work across a run of new homes
New build mastic in Harestock, done properly
We work in new homes and on new-build sites across Harestock. One shower or a whole phase of plots, the method does not change: cut out, clean, prime where needed and reseal neatly. We are often asked to deal with second-fix sealing on new plots and messy sealant that spoils new finishes, across kitchens, plot handovers and skirting & floors.
Homes around Harestock 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 stand behind the work with a one-year guarantee, so you are covered after we have gone.
- Where
- Harestock (SO22)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
When it is not the sealant
Sealant isn’t the answer to every problem, and we’ll tell you before work begins. It won’t solve:
- Settlement cracks that need a surveyor
- Cracked trays, tiles or worktops
- Leaking fittings rather than failed sealant
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Where we work in Harestock
- Windows & doors
- Kitchens
- Bathrooms & en suites
- Plot handovers
- Show homes
- Skirting & floors
Landlords, agents and businesses in Harestock
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured for the work.
We work for landlords and agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Quotes for new build mastic in Harestock
Call for a quick quote. The main things that affect it are:
- The product the joint needs
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
- The size of the job
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.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- Any access issues, like height or stairs
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- Photos by email, if that’s easy
Getting a quote is simple: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we will take it from there.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Why it’s worth doing now in Harestock
If you are still in the builder’s snagging or warranty period, ask them to put it right first. If it keeps failing or is not dealt with, we can reseal it properly. In a smaller place like Harestock, 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.
A few things move the cost up or down: 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.
Why book with us
- A 12-month guarantee on all work
- Anti-fungal sanitary silicone in wet areas
- Neat joints and a tidy finish
- White, clear, grey or coloured to suit, where the product allows
See what affects the cost and our reviews.
What new build mastic looks like in Harestock
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Harestock, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Winchester station, the sealant around baths, showers and frames is worth checking in the first year or two.
Harestock is about 2 miles north-west of Winchester, in Hampshire. Harestock gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Harestock is one of 683 towns and villages in Hampshire where we work. We also work in Southampton, about 12 miles from Harestock.
Postcode districts we cover here for new build mastic: SO22. New build mastic is available to properties on Kennel Lane, Burley Road and Stoney Lane. We also cover the places around Harestock: Littleton (1 mile north-west), Weeke (1 mile south), Abbotts Barton (1 mile south-east), Hyde (1 mile south-east) and Headbourne Worthy (1 mile north-east). Larger places within reach include Eastleigh (8 miles south), Andover (11 miles north-west), Totton (14 miles south-west), Chandler's Ford (7 miles south), Hedge End (12 miles south) and Romsey (9 miles south-west).
Local landmarks in Harestock
We work in homes and buildings around Henry Beaufort School and The Running Horse pub and the streets around them. The nearest railway station is Winchester station, roughly 1.2 miles south-east. Nearby you’ll also find Royal Observer Corps Museum (1.1 miles south-east) and Royal Hampshire County Hospital (1.5 miles south). Not far away are Twyford Down and Winnall Moors.
Different surfaces, different methods
Windows and doors
A draught at a new window can be a missed or failed joint. We look at the joints and reseal where needed.
Kitchens
Worktop, upstand and sink joints in new kitchens often get a hurried bead. We remove it and reseal with a kitchen-suitable sealant.
How it works
At the end, we look at the finished work together. The work normally takes a few hours in a single home, depending on how much there is to do. In a smaller place like Harestock, 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.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
- For business premises, tell us about site rules or sign-in
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved before giving you a price.
Read more
Nearby places to Harestock
What else we do in Harestock
FAQs for Harestock
Can you do new build mastic in Harestock?
Yes, Harestock is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Winchester station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
How long does the job take?
As a guide, most jobs take anything from a few hours to several days, depending on the number of plots. Bigger jobs take longer, and we will tell you how long to expect.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used.
Should I wait before resealing?
Where water is getting through, do not wait. Hairline cosmetic gaps can wait until the house has settled.
Do you use white or clear sealant?
Most bathroom joints are white or clear, but other colours are available. We choose one to suit the room before we begin.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.