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

Elson facade sealing

Facade joint and window perimeter sealing on commercial buildings in Elson and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.

  • Weathered facade joints that have lost their grip
  • Draughts around frames and panels
  • New sealant peeling off old mastic
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Facade sealing for businesses in Elson

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Work for main contractors and building owners

If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, which keeps the paperwork simple.

About our facade sealing in Elson

Some clients need every window on a block resealed; others need a few leaking frames sorted. Either way, the method is the same: cut out, clean, back, prime where needed and seal. A 12-month guarantee applies to our workmanship. If you are dealing with gaps between rainscreen or cladding panels and discoloured or dirty facade joints, we can help, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Elson, that means joint design, primers and backing rod as standard.

Conversions around smaller places like Elson often join new frames to old masonry or timber, which leaves joints between old walls and new frames that need a sealant able to take the movement.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Elson (PO12, PO13)
Region
Hampshire
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026

Your questions answered

Is a smaller place like Elson outside your area?

No. Small places get the same service as large ones. 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.

Could you schedule work at a campus like University of Portsmouth - North Zone for the vacation?

Yes. We plan campus work around teaching, exams and residence turnarounds. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Can the sealant be colour-matched?

It depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.

Do you guarantee your work?

Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.

Can the building stay open while you work?

Yes, as long as we plan it. Tell us your site hours and access windows and we will plan around them.

Will you just go over the old sealant?

No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

How do I request a quote?

You can use the quote form on this site; alternatively, call 01277 525 020 or email the details over. Include photographs or drawings if you have them.

Diagnose, treat, sign off

At the end of each section, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. If neighbouring businesses or buildings around Elson need work too, visits can be combined. Tell us your site hours and we’ll plan around them.

  1. We plan access and the order of elevations with the client.
  2. We only seal when joints are dry and within the product’s temperature range.
  3. Each joint is cut out and the edges inspected.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. Once signed off, the work carries our 12-month guarantee.

What we need from you

  • Send your site hours and access windows
  • Arrange parking or a loading space
  • Point out any areas we must not close

Ask for a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or email drawings and photos.

Get a price

Related advice

Facades, frames and programmes in Elson

Elson is within about 1 mile of the coast. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Elson sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager.

Hotels like Railway Hotel, 1.3 miles south-east of Elson, rarely close for long, so refurbishment mastic is phased floor by floor. Recladding or extending a unit at a site like Brockhurst Gate Retail Park (to the north-west of Elson) brings panel joints and frame perimeters into the programme.

Elson is about 1 mile north of Gosport, in Hampshire. Any commercial site in Elson is covered. 723 places across Hampshire fall within our area, including Elson.

Work on facade joints is covered throughout PO12 and PO13, whatever the building. If your site is on Ham Lane, Quay Lane and Avery Lane or close by, we can quote for facade joints. Main routes into Elson include the A32. If your building is just outside Elson, we cover Gosport (1 mile south), Forton (1 mile south), Bridgemary (1 mile north-west), Priddy's Hard (1 mile south-east) and Rowner (1 mile north-west). A short drive away, we cover Havant (8 miles north-east), Eastleigh (14 miles north-west), Fareham (3 miles north-west), Horndean (9 miles north-east), Hedge End (10 miles north-west) and Waterlooville (7 miles north-east).

Local landmarks in Elson

Around Elson, our work takes us to commercial buildings near The Kings Head pub, St Vincent College and Brune Park Community School. For rail, the closest station is Portsmouth Harbour station, about 2.1 miles south-east of the centre. Nearby you will also find Search (1.6 miles south-east) and Portchester Castle (2.2 miles north-east). Open spaces near Elson include West of the River Alver and Portsdown Hill.

Map of Elson © OpenStreetMap contributors

Honest limits

We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:

  • Water getting in through cracked render or porous masonry
  • Joints whose design needs changing by the specifier
  • Arranging specialist high-level access, which is planned with the client

If you’re not sure, just call 01277 525 020 or email us and we will give you a straight answer before you book.

What we seal

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

After the work

Keep the joints in good shape with a few simple steps:

  • Ask about asbestos in pre-2000 mastic
  • Plan facade sealing alongside redecoration
  • Never let anyone seal over old sealant
  • Don’t wait for a second leak before calling

Record the sealant type and date on the building file. It helps when matching repairs or planning the next reseal.

Check older buildings for asbestos before disturbing old mastic. Some older mastics contain it, and work stops until it’s tested if it’s suspected.

What the job involves on each surface

Window and door perimeters

Frame materials vary, and so does the preparation. Primer goes on where the manufacturer specifies it for that substrate.

Brick and stone facades

Stone can absorb plasticisers from the wrong sealant. The specified stone-compatible sealant is what we use, and mask the edges carefully.

Signs you need facade sealing in Elson

When sealant lets go of a frame or panel, the cause is often the preparation. Contamination, moisture or skipping the primer the maker specifies leave a weak bond.

Typical triggers for a call:

  • Discoloured or dirty facade joints
  • Weathered facade joints that have lost their grip
  • Weathered joints at frame-to-structure perimeters
  • Water coming in around window frames

For a contractor working at a hospital such as Gosport War Memorial Hospital, 1.4 miles south of Elson, perimeter and facade sealing is planned around patients and deliveries.

Before you book anyone

  • Will failed sealant be removed rather than covered?
  • Their plan for phasing and protecting the area
  • Do they follow the manufacturer’s priming guidance?
  • What the guarantee covers, and for how long

How to choose a sealant contractor

Accreditations

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