The Mastic Doctor team standing beside their branded vans outside an office building
Hampshire · England

Leagreen facade sealing

Planning work on a facade joint in Leagreen? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Patch repairs that keep failing
  • Unsightly perimeter sealant on a visible elevation
  • Air leaks through failed facade joints
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing for Leagreen sites

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Different surfaces, different methods

Perimeter joints at frames and structure

Perimeter joints at frames often show their age first. We cut them out, prepare both faces and reseal to the specification.

Precast concrete panels

Joints between precast panels carry real movement. We use a sealant with the right movement capability, set over backing rod with primer where the product requires it.

Facade sealing for commercial buildings in Leagreen

We seal window and door perimeters, cladding panel joints, external facade joints and perimeter joints where frames meet the structure. Coping and flashing joints are included where sealant is the specified fix. Most enquiries involve leaks at window and door perimeters and new sealant peeling off old mastic, on stone and brick facade joints, shopfront frames and cladding panel joints. For commercial sealant work in Leagreen, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

Sites around smaller places like Leagreen can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Drawings, photographs and the programme let us give a fixed quote.

Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

Place
Leagreen (SO41)
Wider area
Hampshire
Guarantee
12 months on our workmanship
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Common problems we fix in Leagreen

Not every failure is in the sealant: if the edge of the render, concrete or coating breaks away, the bead goes with it. When the joint edges need repair first, we say so.

Things that normally lead to an enquiry:

  • Gaps between rainscreen or cladding panels
  • Air leaks through failed facade joints
  • Staining on stone next to old sealant
  • Weathered facade joints that have lost their grip

Units on estates such as Gore Road Industrial Estate, 2.7 miles to the west of Leagreen, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.

What to look for in a quote

  • Their public liability cover
  • Whether primer will be used where the manufacturer specifies it
  • Health and safety accreditation such as CHAS
  • How they’ll work around occupants

Choosing a commercial sealant contractor

Honest limits

A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:

  • Replacing glass or failed glazing units
  • Joints whose design needs changing by the specifier
  • Arranging specialist high-level access, which is planned with the client

If in doubt, phone 01277 525 020 or email us and we will say what we think.

Joints and surfaces we work on

  • Cladding panel joints
  • Perimeter joints where frames meet the structure
  • Stone and brick facade joints
  • Coping and flashing joints
  • Window and door perimeters
  • Shopfront frames

On site: what to expect

When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, with the work itself typically taking a day or two for a few elevations, and longer where access has to be moved around the building. Smaller jobs around Leagreen can be grouped with others nearby. A fixed quote is given before anything starts.

  1. Photos, drawings or a visit tell us about the joints and the access.
  2. We confirm the joint type, movement and the specified product.
  3. Failed beads are removed in full and both faces cleaned back.
  4. Primer goes on where the product data asks for it.
  5. Rod goes in to fix the depth, then the joint is sealed and tooled.
  6. We go over the completed work with you before leaving.

Getting the site ready

  • Point out parking and an unloading spot
  • Send asbestos survey details if the building is pre-2000
  • Tell us which areas need to stay in use

Ask for a quote

Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, phone 01277 525 020 or email drawings and photos.

Get a price

Related advice

What happens if it’s left?

Patch repairs over old sealant tend to come back. A full cut-out and fresh bead is the repair that holds. For buildings around smaller places like Leagreen, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

The product called for affects the cost, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.

Why choose Mastic Doctor in Leagreen

  • Public liability insurance in place
  • CHAS accredited
  • A Constructionline member, so easy to vet
  • Sealing commercial buildings since 2005

Read how commercial sealant jobs are priced or our accreditations.

Questions we’re asked in Leagreen

Our building in Leagreen is near the coast: does that change the sealant?

It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Is Leagreen off your patch?

Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.

Will you come and look before quoting?

Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit before quoting.

Can you follow the specification on our project?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.

Will you just go over the old sealant?

No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

How much does the work cost?

Every job gets its own fixed quote. For yours, give us a call on 01277 525 020 or send photos by email.

Can you find out why a window is leaking?

Yes. We check the sealant joints and report what we find before quoting. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

New build and refits around Leagreen

The sea is no more than about 1 mile from Leagreen. Facades and window perimeters on coastal schemes take more wind-driven rain, and salt air nearer the shore, so we check the specified product suits the exposure before the first bead. The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team.

Older buildings in the area around Leagreen, such as Highcliffe Castle, 4.5 miles to the west of Leagreen, need care when sealed: the product has to suit soft or historic materials. Hotels like South Lawn Hotel (1.1 miles south-east of Leagreen) rarely close for long, so refurbishment mastic is phased floor by floor.

Leagreen is about 3 miles west of Lymington, in Hampshire. We cover commercial sites throughout Leagreen, for single jobs and planned programmes alike. Leagreen is one of 723 places in Hampshire on our list for facade joints. For work in that direction, see our Southampton page.

We cover the SO41 postcode districts. Just outside Leagreen, we also work in Downton (1 mile west), Hordle (1 mile north), Ashley (2 miles north-west), New Milton (2 miles north-west) and Barton on Sea (2 miles west). Further afield, our area takes in Totton (13 miles north), Lymington (3 miles east), Hythe (12 miles north-east), Ringwood (10 miles north-west), Dibden Purlieu (12 miles north-east) and Marchwood (13 miles north-east).

Local landmarks in Leagreen

Recent enquiries here include premises near The Arnewood School. For rail, the closest station is New Milton station, roughly 2.2 miles north-west. Nearby you’ll also find Lymington New Forest Hospital (3.5 miles north-east) and Sammy Miller Motorcycle Museum (3.1 miles north-west). The countryside around Leagreen includes Milford on Sea LNR.

Map of Leagreen © OpenStreetMap contributors

Cost factors for facade joints

Quotes vary with the job. Expect it to depend on:

  • Location, for remote and island sites
  • Removal of failed or old sealant
  • Joint width, depth and condition
  • How accessible the joints are

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we’ll explain how it’s made up.

Details that help us quote

Diagnosis starts before we arrive. Let us know:

  • Access details, including height
  • Rough lengths or quantities, or drawings if you have them
  • The postcode of the building
  • Any specification or named product

If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photos and a description will do.

Accreditations

Trusted. Accredited. Insured.