Mastic sealing for building owners and managing agents in Longmoor, Hampshire
Looking for mastic sealing in Longmoor? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Draught complaints from residents or tenants
- Old repairs sealed over failed mastic
- Cracked, hardened mastic round windows on a block
Mastic sealing for Longmoor sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What we can’t put right
We check first that sealant really is the fix. It won’t put right:
- Masonry that has broken away beside the joint
- Materials that need asbestos testing before work
- Broken glass or failed sealed units
If in doubt, call 01277 525 020 or email the details over and we’ll say what we think.
What we seal
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Balcony and threshold joints
- Shopfronts below residential blocks
- External wall and movement joints
- Communal entrances and stairwells
Mastic sealing in Longmoor, done properly
For over 20 years we have resealed joints for owners, agents and landlords. Our applicators are CSCS-carded and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. Site teams most often ask us about the same joint failures repeated across a portfolio and movement joints with sealant missing, on communal kitchens and washrooms, external wall and movement joints and balcony and threshold joints. For commercial sealant work in Longmoor, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
For owners with a single building near Longmoor, we plan to finish in one visit where possible. Send photographs of the frames and joints and we will give a fixed quote.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Where
- Longmoor (GU33)
- Wider area
- Hampshire
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
How a job runs
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes anything from a day to a few weeks, depending on the number of buildings and joints, and our waste is bagged and taken away as we go. Smaller jobs around Longmoor can be grouped with others nearby. A fixed quote is given before anything starts.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- Dates and areas are agreed so occupiers can be told.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
What we need from you
- Send your site hours and access windows
- Warn occupants and staff about the work
- Flag any permit to work we will need
Quotes
Send us photos, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
Read more
Common questions from Longmoor clients
Will you take on a block within reach of Liss station?
Yes, and several blocks can go on one quote. We work to your notice and access arrangements.
Is Longmoor off your patch?
Not at all. Longmoor is within our area. London and every South East county are within our area. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Do you work with property factors and landlords?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order with dates agreed in advance.
How do you reach windows on upper floors?
Every block is different. We agree access with you at quote stage so the fixed quote reflects it.
Is it fine to apply new sealant on top of old?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
When is resealing likely to be due?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
Can weather delay the job?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
When to call us in Longmoor
Buildings move with temperature and moisture, and the sealant takes up that movement. If the joint or the product wasn’t suited to the movement, it splits and fails early.
Common reasons buildings call us in:
- Estate-wide sealant that is simply worn out
- Repeated reactive repairs to the same buildings
- A mix of products and colours from past repairs
- Open joints in brickwork or panels
If you look after a block within reach of Liss station, 2.3 miles to the south-west of Longmoor, frame and balcony mastic can be renewed on one programme.
Comparing quotes
- Whether their applicators hold CSCS cards
- Can the work be phased to keep areas open?
- What site paperwork they can supply
- How the existing material will be dealt with
Nearby places to Longmoor
Also in Longmoor
What sets the cost
Before we quote, we look at:
- Joint width, depth and condition
- Location, for remote and island sites
- Whether the work must be split into stages
- Access and working height
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.
Details that help us quote
It doesn’t need to be a full survey. A few details are enough to get going:
- When you need the work done
- Where the site is, with the postcode
- How the joints are reached, and at what height
- Specification clauses that apply
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or email the details over with what you know.
When to bring in a specialist
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Commercial clients in Longmoor
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Planned mastic for Longmoor portfolios
At about 45 miles from central London, Longmoor is within reach of the capital. Managed blocks of flats are a big part of commuter-belt property. Longmoor sits in one of the drier corners of the country, the South East. Even so, frame mastic only goes on in dry, workable conditions, and the sunniest, most exposed sides of a building typically need attention first.
If your remit includes a building such as Greatham Primary School, frame and door mastic can be programmed for the holidays. Property owners at sites such as Longmoor Enterprise Park (to the west of Longmoor) can have mastic renewed between lettings.
Longmoor is about 3 miles south of Bordon, in Hampshire. Commercial clients in Longmoor use us for work on mastic joints. Longmoor is one of 723 places in Hampshire on our list. We also cover Portsmouth, some 20 miles away.
If you need mastic sealing in GU33, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. For a building on Woolmer Road, Roberts Road and Methuen Road or nearby, send details and we will quote for mastic joints. Nearby places we also cover 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) for mastic joints. A short drive away, we cover 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).
Near you in Longmoor
Longmoor’s nearest station is Liss station, about 2.3 miles south-west. Well-known places in the area include The Romany Museum (3.4 miles north-west) and Chase Community Hospital (2.3 miles north). Green spaces nearby include Wheeler's Down and Liss Riverside Railway Walk North.