Hampshire · England
New-build mastic & snagging in Longmoor, Hampshire
Specialist new build mastic for Longmoor: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Gaps opening as the house dries out and settles
- Untidy sealant flagged on a snagging list
- Worktop and upstand sealant coming away
Questions from Longmoor
Do you cover smaller places like Longmoor?
Yes. Longmoor is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Liss station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
Can I do it myself?
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.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
What colour sealant will you use?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We will agree it with you first.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
New build mastic for homes and businesses in Longmoor
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, because that’s what rushed new-build sealant generally lacks. If you are dealing with beads laid onto grit and dust from the build and second-fix sealing on new plots, we can help, whatever the surface.
Somewhere as small as Longmoor, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
Every job comes with a 12-month guarantee.
- Where
- Longmoor (GU33)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

What we are called out for in Longmoor
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 and the sealant has to cope with the movement.
People generally contact us after spotting one of these:
- Beads laid onto grit and dust from the build
- Worktop and upstand sealant coming away
- Skirting joints opening in the first winter
- Gaps opening as the house dries out and settles
For new homes near Liss station, it’s worth checking the sealant early, while snags are still fresh.
Before you book anyone
- Who turns up on the day
- Is VAT in the price?
- How the colour is chosen
- When the joint can take water or movement
Different surfaces, different methods
Kitchens
New-kitchen sealant is often applied in a rush. We remove it and reseal with a kitchen-suitable sealant.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. The joint is stripped back before the new bead goes in and baths are filled before sealing.
Also near Longmoor
Other services in Longmoor
The process
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes a few hours in a single home for a typical job. Somewhere as small as Longmoor, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely down to clean surfaces.
- 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.
How to prepare
- Move anything stored near the joints
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or email us.
Related advice
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
New homes and floors in Longmoor
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In and around Longmoor, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Longmoor is about 3 miles south of Bordon, in Hampshire. Our applicators cover new build mastic for householders, landlords and businesses in Longmoor, as part of our work across Hampshire. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. You can also see our page for Portsmouth, roughly 20 miles from Longmoor.
Postcode districts we cover here for new build mastic: GU33. Whether your property is on Woolmer Road, Roberts Road and Methuen Road or a nearby road, we can help. Neighbouring places we cover for new build mastic include Greatham (1 mile west), Woolmer (1 mile north-west), Liss Forest (2 miles south-west), The Mint (2 miles south) and Blackmoor (2 miles north-west). Larger places within reach include Havant (15 miles south), Fleet (14 miles north), Horndean (13 miles south-west), Aldershot (13 miles north), Alton (7 miles north-west) and Waterlooville (15 miles south-west).
Landmarks near Longmoor
The closest station to Longmoor is Liss station, about 2.3 miles south-west of the centre. Well-known places in the area include The Romany Museum (3.4 miles north-west) and Chase Community Hospital (2.3 miles north). Not far away are Wheeler's Down and Liss Riverside Railway Walk North.
Why act early in Longmoor
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot. In a small place like Longmoor, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What you get with us
- Tidy, careful work
- Experience in homes, commercial sites and hotels
- A sealant colour to suit the surroundings
- Trusted Arbo and Everbuild sealants
What affects the cost of new build mastic
Every job gets its own quote. This is what makes a difference:
- The old material and how stubborn it is
- The product the joint needs
- Any mould that needs treating
- How many areas need sealing
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 email us and we’ll talk you through it.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Any previous sealing or DIY work
- Where the property is
- The rough size of the job
- What’s wrong with the joints now
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we will come back to you with a quote.
Honest limits
It helps to know what we cannot do:
- Cracked trays, tiles or worktops
- Your warranty claim itself, which is between you and the builder
- Movement caused by a poorly fitted tray or bath
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Plot handovers
- Skirting & floors
- Show homes
- Kitchens
- Bathrooms & en suites
- Windows & doors
