The Mastic Doctor team standing beside their branded vans outside an office building
Shetland Islands · Scotland

Symbister facade sealing

Facade sealing for Symbister, from a contractor working since 2005. Fully insured, with a 12-month guarantee.

  • Old perimeter mastic that has dried out
  • Water coming in around window frames
  • Unsightly perimeter sealant on a visible elevation
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Facade sealing for Symbister sites

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

Commercial clients in Symbister

CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

About our facade sealing in Symbister

Installing framed glazing systems isn’t part of our work. We handle the sealant joints that surround those elements: perimeter joints where frames meet the structure, panel joints and window perimeters with products suited to facade or glazing perimeter joints. If you’re dealing with cladding panel joints that have opened up and facade joints cracked through the middle, we can put it right, on stone and brick facade joints, cladding panel joints and window and door perimeters alike. A single leaking joint is often how a building in Symbister first comes to us: we look at the rest while we are there and tell you what we find.

Sites near smaller places like Symbister can mean longer travel, so the mastic is planned with as few trips as the job allows. Send drawings, photos and the programme so everything needed arrives on the first day.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Mastic Doctor team members lined up next to their branded vans outside an office building
Place
Symbister (ZE2)
Wider area
Shetland Islands
Cover
A 12-month guarantee
Price
Fixed quote, scope in writing
Phone
01277 525 020
Page updated
3 November 2026

Building and refurbishing in Symbister

The sea is no more than about 1 mile from Symbister. 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. Symbister is on Scotland’s drier eastern side. Frost and condensation on frames and panels can still hold up external mastic on winter mornings. We programme around it with the site team.

Around Symbister, as anywhere, a facade joint depends on its sizing, backing rod and preparation.

Symbister is in the Shetland Islands. Any commercial site in Symbister is covered, whether it’s a single job or part of a planned programme. Symbister is one of 63 places in the Shetland Islands on our list for facade joints.

Business premises anywhere in ZE2 are within our area for facade joints. We cover commercial and managed buildings on Rocky Road, Saeter and North Gardentown and the roads nearby. Close to Symbister, our area also takes in Sandwick (1 mile south-west), Clate (1 mile south), Hamister (1 mile north), Huxter (1 mile east) and Tripwell (1 mile north-east). Bigger towns within reach include Lerwick (14 miles south), Sound (15 miles south) and Brae (12 miles west). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so mention the location when you give us a call on 01277 525 020 or send details through our quote form.

What’s near Symbister

The countryside around Symbister includes Ward of Clett and Bu Water.

Map of Symbister © OpenStreetMap contributors

From enquiry to sign-off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes a day or two for a few elevations, and longer where access has to be moved around the building, and our waste is bagged and taken away as we go. Jobs near Symbister are often grouped with others in the same area. Tell us how flexible your dates are.

  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. Sealant is gunned in and tooled hard onto both faces.
  6. Once signed off, the work carries our 12-month guarantee.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • Share the asbestos register for older buildings
  • Tell us what induction or permit system the site runs

Get a fixed quote

For a fixed quote, phone 01277 525 020 or email the details over. Our quote form is another easy route.

Ask for a quote

Advice

Do you need facade sealing in Symbister?

Sun, rain and temperature swings wear facade sealant down over the years. The bead hardens, chalks on the surface and loses the flexibility to follow the joint, then it splits or peels.

These are often picked up first by site or facilities staff:

  • Cold air coming in at window perimeters
  • Failed sealant on precast panel joints
  • Old perimeter mastic that has dried out
  • Perimeter sealant that has split or peeled away

Sites around Symbister get mastic sealed to the drawings and the programme, nothing improvised.

What your quote should include

  • How the existing material will be dealt with
  • Their plan for phasing and protecting the area
  • Proof of insurance
  • How long is the guarantee, and what does it include?

Choosing a commercial sealant contractor

Different surfaces, different methods

Cladding panel joints

Where panels are sealed rather than open-jointed, the bead is part of the weather line. We cut out failed joints along their full length and rebuild them with backing and a facade-grade sealant.

Render and coated surfaces

Paintable sealants exist for joints that will be coated. The choice depends on the specification and finish.

Site staff or a sealant specialist?

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.

Why deal with it now?

Failed joints let in more than water: occupants notice draughts and cold spots around windows. Resealing deals with the draught as well as the leak. For buildings near Symbister, dealing with all the failing joints at once saves return trips. Send photographs and we’ll quote for everything together.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.

Why us?

  • RAL and finish matching where the product range allows
  • Specification-led, product-correct work
  • Health and safety: CHAS accredited
  • A fixed quote before work starts

Take a look at what affects the cost or our accreditations and insurance.

Your questions answered

Can being near the sea in Symbister affect the sealant we need?

It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Do you work on the island where Symbister is?

Yes, Symbister is within the area we cover. Our area covers all of Scotland, cities, towns and islands alike. We plan island jobs around the ferry and the forecast, and bring everything the job needs on the first crossing.

Do you use silicone for external joints?

Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others.

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.

Do you replace windows or glass?

No. Glazing, windows and glass replacement aren’t part of our work. We seal the joints around them, such as perimeter joints where frames meet the structure.

Should we check old sealant for asbestos?

For older buildings, yes, check before work starts. The dutyholder holds the asbestos register, and we’ll ask to see it. If asbestos is suspected, work stops until it is tested.

Can you follow the specification on our project?

Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.

Accreditations

Trusted. Accredited. Insured.