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

Construction and new-build mastic in Bonnyrigg, Midlothian

Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Bonnyrigg. Send photographs or drawings for a fixed quote.

  • Frame gaps too wide for sealant alone
  • New external sealant already peeling away
  • Snag items on joints that need redoing before handover
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Construction mastic near Bonnyrigg

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Why act early in Bonnyrigg

On a refurbishment, there’s a choice between resealing existing frames and replacing them. Sound frames often need only a new perimeter seal. If the frame is life-expired, we will tell you. A leaking joint can damage finishes, stock and fittings inside. Putting it right early limits the damage.

The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site rules also count.

Why clients in Bonnyrigg choose us

  • Commercial sealant work since 2005
  • 12-month guarantee on workmanship
  • One phone line for London, the South East and Scotland
  • Constructionline member for supplier checks

See what affects the cost or our accreditations and insurance.

Construction mastic for commercial buildings in Bonnyrigg

Getting a subcontractor through site induction should be simple. Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member, with public liability insurance in place. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. The enquiries we see most involve failed sealant in an existing building being refurbished and frame perimeters left unsealed or poorly sealed, on sanitary and kitchen joints, brick and block movement joints and floor and skirting junctions. Whoever orders the work in Bonnyrigg, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

In Bonnyrigg, construction comes under Scotland’s building standards and the local authority’s warrant process. Our part is sealing to the specification, on programme, with snags cleared before completion.

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

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Bonnyrigg (EH19, EH18, EH20)
Region
Midlothian
Guarantee
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026

When something else is needed

We check first that sealant really is the fix. It won’t put right:

  • Approving fire stopping as compliant
  • Rework caused by others damaging completed areas
  • Joint design decisions that belong to the architect or engineer

Not sure which it is? You can phone 01277 525 020 or use the quote form and we’ll tell you honestly before you book.

Where we work in Bonnyrigg

  • Floor and skirting junctions
  • Cladding and panel joints
  • Sanitary and kitchen joints
  • Window and door perimeters
  • Brick and block movement joints
  • Internal decorators’ caulk

On site: what to expect

The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Industrial estates and retail parks around towns like Bonnyrigg normally have yard space and site rules. Central premises can need a little more planning for parking.

  1. We start with the drawings, specification and programme.
  2. Quantities are measured and a fixed price returned.
  3. We agree with the site team which areas come first.
  4. Each area is sealed when it’s released.
  5. Every joint is cleaned, set to depth and sealed with the specified product.
  6. After snagging, the work is handed over under our 12-month guarantee.

Before we start on site

  • Make sure the joints can be reached
  • Tell us your opening times and when work is allowed
  • Flag any permit to work we’ll need

Quotes

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Get a quick quote

Read more

Maintenance after handover

A few simple habits keep the new joints working:

  • Bring the mastic contractor in after the last trades are through
  • Stick to the specified sealant rather than a generic substitute
  • Ask cleaners to use soft cloths around fresh sealant
  • Record the products used in the O&M file

Any damage after we’ve finished should go on the snag list right away. Snags can be picked up in a planned close-out visit, priced as part of the package or separately.

Leaving the mastic snag list to the end squeezes everyone. A planned close-out through each area as it completes keeps the list short, and avoids a rush.

For managing agents and facilities managers

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

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

Site staff or a sealant specialist?

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

Construction mastic around Bonnyrigg: how the place shapes the job

In Bonnyrigg, as across Scotland, building warrants are issued by the local authority verifier under the Scottish regulations. The mastic package follows the approved specification. Several hotels sit less than 2 miles from Bonnyrigg. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.

Extensions at sites like Midlothian Community Hospital, 0.8 miles to the north-east of Bonnyrigg, typically sit beside working departments, and the mastic follows strict access rules. For contractors on a campus like University of Edinburgh Bioquarter (3.5 miles north of Bonnyrigg), facade and perimeter sealing has to fit around students and term dates. For contractors at a college like Edinburgh College - Midlothian Campus, 1.2 miles to the north-east of Bonnyrigg, perimeters and internal sealant are timed for the holidays.

Bonnyrigg is about 6 miles south-east of Edinburgh, in Midlothian. We cover commercial sites throughout Bonnyrigg, for single jobs and planned programmes alike. Bonnyrigg is one of 34 places in Midlothian on our list for mastic packages. We also cover Edinburgh, some 6 miles away.

Postcode districts covered here: EH19, EH18 and EH20. If your site is on Old Market Place, High Street and Church Road or close by, send details and we’ll quote for mastic packages. Main routes into Bonnyrigg include the A768 and B704, which helps when planning parking and deliveries for the job. Nearby places we also cover include Lasswade (1 mile north-west), Polton (1 mile west), Rosewell (2 miles south-west), Loanhead (2 miles west) and Roslin (3 miles west) for mastic packages. Bigger towns within reach include Penicuik (5 miles south-west), Gorebridge (3 miles south-east), Mayfield (3 miles east), Shawfair (4 miles north), Danderhall (3 miles north) and Bilston (3 miles west). Among the larger centres in Midlothian is Bonnyrigg, and we take on mastic packages for its commercial and public buildings.

What’s near Bonnyrigg

Recent enquiries here include premises near Public Library. The closest station to Bonnyrigg is Eskbank station, about 1.1 miles north-east. Other landmarks nearby include Dalhousie Castle (1.2 miles south-east) and Midlothian Community Hospital (0.8 miles north-east). Open spaces near Bonnyrigg include The New Leaf Co-op and Edgelaw Reservoir.

Map of Bonnyrigg © OpenStreetMap contributors

Questions we’re asked in Bonnyrigg

Can you take on a job at a hospital such as Midlothian Community Hospital?

Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

Can you work around term dates at a campus such as University of Edinburgh Bioquarter?

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.

Will you quote for a small job?

We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.

Can you follow the specification on our project?

Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.

How do I request a quote?

The quote form is the simplest route, though you can also phone 01277 525 020 or use the quote form. Photos, drawings or a joint schedule help us quote quickly.

Can weather delay the job?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Are you CHAS accredited?

We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. We are also fully insured, with five million pounds of public liability cover.

Accreditations

Trusted. Accredited. Insured.