Hampshire · England
New-build mastic & snagging in Crow, Hampshire
New build mastic for Crow, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Kitchen sealant that has pulled off the wall
- Skirting joints opening in the first winter
- Leaking shower tray seals in a new home
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Crow, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each joint is checked for movement before work begins.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- 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
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
Get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Related advice
New build mastic in Crow
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover using the right product for each joint. We work on bathrooms & en suites, plot handovers and show homes, and people most often call us about untidy sealant flagged on a snagging list and leaking shower tray seals in a new home.
Work in a small place like Crow just needs the journey and access planning, and the work itself is the same as on any site.
Big or small, you get the same one-year guarantee in Crow and across Hampshire.
- Where
- Crow (BH24)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

How the job changes by surface
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
Kitchens
New-kitchen sealant is often applied in a rush. We take it out and reseal neatly, colour-matched where it shows.
What affects the cost of new build mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- The size of the job
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
What we need to know
When you call or email, these details help:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- The address or postcode of the job
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Structural cracks in walls or ceilings
- A tray or bath that is not properly supported, until it’s fixed
- Damaged fittings that need replacing
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
What we seal
- Show homes
- Kitchens
- Windows & doors
- Skirting & floors
- Bathrooms & en suites
- Plot handovers
New build mastic in Crow: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Crow, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Crow is in Hampshire. If you need new build mastic in Crow, please phone 0345 464 0079 or drop us an email for a quick quote. We cover Hampshire from our Crawley base. Crow is one of 683 towns and villages in Hampshire where we work for new build mastic. Southampton is on our list too, around 17 miles away.
Here we cover the BH24 postcode area for new build mastic. New build mastic is available to properties on Barrack Lane, Wood End Road and Crow Lane and the roads around them. Nearby, we also carry out new build mastic in Upper Kingston (1 mile west), Hightown (1 mile north), Bagnum (1 mile south), Ringwood (1 mile north-west) and Poulner (1 mile north). Further out, we also cover Totton (13 miles north-east), Lymington (11 miles south-east), New Milton (7 miles south-east), Barton on Sea (8 miles south-east), Dibden Purlieu (15 miles east) and Marchwood (14 miles east).
Landmarks near Crow
We work in homes and buildings around Ringwood School and The Elm Tree Inn and the streets around them. Well-known places in the area include St Leonard's Hospital (4.3 miles west). The countryside around Crow includes Blashford Lakes and Linbrook Lake.
Landlords, agents and businesses in Crow
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
If you manage several properties in or around Crow, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Other services in Crow
When to call us in Crow
Sealant applied onto damp surfaces doesn’t bond well. Site programmes don’t always leave time for joints to dry first.
The problems people generally mention when they call include:
- Messy sealant that spoils new finishes
- Leaking shower tray seals in a new home
- Cracked caulk along new skirting
- Plot mastic for developers ahead of handover
For jobs in and around Crow, choosing the right material for each joint is as important as a tidy finish.
Questions to ask before booking
- What guarantee comes with the work
- Whether all the old sealant comes out first
- Which colour the sealant will be
- How long to leave it before use
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Crow questions
Is new build mastic in Crow guaranteed?
All our work, in Crow and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is Crow in your area for new build mastic?
Yes. We work across London and the South East, and Crow is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
How long should I leave it?
It depends on the product and the conditions. Before we leave, we will tell you the cure time.
Are you insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Is it normal for sealant to crack in a new home?
It’s common, and there are normally two reasons: the house moving as it dries, and sealant that never bonded properly. Cutting it out and resealing properly fixes both.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
My new home is still under warranty. Should I contact you?
Start with the builder if you are in the snagging or warranty period. If it isn’t resolved, we can reseal it properly.
