Hampshire · England
East Harting New Build Mastic
New build mastic for East Harting, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps between new skirting and floors
- Untidy sealant flagged on a snagging list
- Gaps opening as the house dries out and settles
New build mastic for homes and businesses in East Harting
Snagging sealant properly means taking the failed bead out completely. Fresh silicone cannot bond to the old layer, so the joint is cut out, cleaned, dried and resealed. If you have plot mastic for developers ahead of handover and shower seals failing in the first year or two, we can put it right, whatever the surface.
Somewhere as small as East Harting, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
There’s a 12-month guarantee on every job, large or small.

- Place
- East Harting (GU31)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for new build mastic
Every job gets its own quote. These are the things that affect it:
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- When we can work, for business premises
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- The problem you’ve noticed
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
Towns and villages near East Harting
More services for East Harting
What new build mastic looks like in East Harting
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around East Harting, as everywhere, new build mastic is only as good as the preparation behind it.
East Harting is about 4 miles south-east of Petersfield, in Hampshire. Wherever you are in the GU31 postcode area, we cover new build mastic for homes and businesses. East Harting is one of 683 towns and villages in Hampshire where we work. We also work in Portsmouth, around 15 miles away.
Our applicators cover all of the GU31 postcode area for new build mastic and the streets around it. New build mastic is available to properties on Hollist Lane, East Harting Street and Orchard Close and the roads around them. Close by, we work in South Harting (1 mile west), Nyewood (1 mile north), Elsted (1 mile east), Elsted Marsh (2 miles east) and Dumpford (2 miles north-east). Within a short drive, we also cover Havant (9 miles south-west), Horndean (8 miles south-west), Alton (13 miles north), Waterlooville (10 miles south-west), Petersfield (4 miles north-west) and Purbrook (10 miles south-west).
Near you in East Harting
Typical jobs here are in homes near The Ship Inn and the streets around them. The closest station to East Harting is Petersfield station, about 4.1 miles north-west. A little further out are Petersfield Community Hospital (4.1 miles north-west) and Bear Museum (3.7 miles north-west). Green spaces nearby include Iping and Stedham Commons and Oakham Hill.
East Harting questions
Do you work for landlords with property near Petersfield station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Will you come out to East Harting?
Yes. East Harting is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work through snagging lists?
Yes. Photos of each sealant item help us quote. If something isn’t sealant, we will say so.
What colour sealant will you use?
We use white, clear or a colour to suit the finishes. Tell us what you’d like when you get a quote.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
If you manage several properties in or around East Harting, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Leaking fittings rather than failed sealant
- Cracking that points to a structural problem
- Movement caused by a poorly fitted tray or bath
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Skirting & floors
- Kitchens
- Windows & doors
- Bathrooms & en suites
- Plot handovers
- Show homes
What we are called out for in East Harting
A new house holds a lot of water from the build, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart.
Keep an eye out for these signs:
- Frame joints opening as the plaster dries
- New-build shower sealant that has already split
- Second-fix sealing on new plots
- Smeared, uneven beads picked up at snagging
For new homes near Petersfield station, it’s worth checking the sealant early, while snags are still fresh.
Before you book anyone
- What preparation is included
- Whether you can choose the colour
- What product goes in the joint
- Is the old sealant removed completely?
What happens if it’s left?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it won’t bond to the old layer. A lasting seal starts with removing the old one completely. Older cottages and farmhouses around East Harting can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint generally makes the job bigger, not smaller. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.
What you get with us
- ARBOMaster approved applicator
- More than 20 years in sealant work
- We are fully insured
- We leave the area clean and tidy
Read our cost guide and what customers say.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours in a single home from start to finish. In a small place like East Harting, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and give you a clear price.
Read more
Keeping the joints in good condition
After the cure time, these simple habits help:
- Keep water off fresh sealant until it has cured
- Keep photos and emails about snagging items
- Get a leaking seal dealt with right away
- Use the extractor fan every time you shower
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing to help keep mould away.
Do not let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you.
