Hertfordshire · England

External & façade joints in Widford, Hertfordshire

Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Widford. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Joints with sealant missing in places
  • Failed sealant between panels on a façade
  • Moss and dirt in joints with no sealant left

External mastic for Widford homes and businesses

How we handle external mastic in Widford

Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. Typical jobs include failed sealant between panels on a façade and water getting into walls through failed joints, on joints between brick and frames, concrete & block and brickwork movement joints.

Around Widford, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water usually gets in.

There’s a 12-month guarantee on every job.

Location
Widford (SG12)
Wider area
Hertfordshire
Cover
One year on every job
Quote
A clear price before any work starts
Phone
0345 464 0079
Last updated
26 October 2026
The Mr Mastic team in navy uniforms in front of three Mr Mastic vans

Outside joints around Widford

Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Much Hadham Palace (about 2.6 miles north) are a reminder that the area around Widford has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.

Letting a property close to Harlow Town station? Then outside joints that have cracked can let damp into a rental, so check them between lets. If you live in an older home near Parish Church of St John the Baptist, old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Widford is about 4 miles east of Ware, in Hertfordshire. Jobs in Widford get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Across Hertfordshire, we cover 381 places, Widford among them. You can also see our page for Chelmsford, roughly 19 miles from Widford.

Our applicators cover all of SG12 for external mastic. If you need external mastic at a property on High Street, Bell Lane and Priory Farm Yard or a nearby road, our applicators can take on the job. Neighbouring places we cover for external mastic include Nether Street (1 mile north-east), Hunsdon (1 mile south), Hunsdonbury (1 mile south), Wareside (1 mile west) and Babbs Green (2 miles west). Further out, we also cover Stevenage (12 miles north-west), Bishop's Stortford (5 miles north-east), Welwyn Garden City (11 miles west), Hoddesdon (6 miles south-west), Cheshunt (9 miles south-west) and Hatfield (13 miles west).

What’s near Widford

We work in homes and buildings around The Bell Inn On The Corner Of Bell Lane and the streets around them. The nearest railway station is Harlow Town station, about 3.2 miles south-east. Nearby you’ll also find Princess Alexandra Hospital (3.7 miles south) and Harlow Mill (3.7 miles south-east). Open spaces near Widford include Hunsdon Mead.

Map of Widford © OpenStreetMap contributors

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. We suggest:

  • Leave the joints unpainted unless we’ve said otherwise
  • Tell anyone working on the walls about the movement joints
  • Don’t let climbing plants root in the sealant
  • Avoid pressure-washing directly into sealant joints

Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint.

An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.

What happens on the day

Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take anything from a few hours to several days, depending on the building. In a small place like Widford, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. Each joint is checked and the colour of the new sealant agreed.
  2. Failed sealant is removed back to clean, sound faces.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. We prime the faces where required.
  5. We gun in low-modulus sealant and tool it neatly.

Getting ready for the visit

  • Mention any leaks or damp you’ve noticed
  • On commercial sites, let us know about site rules
  • Move anything stored near the joints

How to get a quote

Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and send you a clear quote.

Ask for a quote

Related advice

Landlord and commercial work in Widford

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.

When to call us in Widford

Using the wrong sealant is another common reason. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.

Look out for any of the following:

  • Joints pointed up with cement by mistake
  • Failed sealant between panels on a façade
  • Brick movement joints where the sealant has split
  • Weeds or debris growing in open joints

Schools such as Widford School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.

What your quote should include

  • Is the old sealant removed completely?
  • Which colour the sealant will be
  • Are they insured?
  • How hidden problems are handled

How to choose a mastic man

Why deal with it now?

The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost, so the problem grows beyond the joint itself. Where a wall is exposed, as many are in small places like Widford, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.

There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email and we’ll talk you through it.

Why book with us

  • Quality sealants from Arbo and Everbuild
  • Sanitary silicone with an anti-fungal additive in wet areas
  • Neat joints and a tidy finish
  • We agree the colour with you first

Read what affects the cost and customer reviews.

Your questions about external mastic in Widford

Is Widford in your area for external mastic?

Yes, Widford is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear quote.

Will you come out to Widford?

Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Can you quote for more than one area?

Yes. Just list everything you need and you’ll get one quote.

What does external mastic cost?

Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or email us and let us know what needs doing and where.

Do you seal joints where cladding meets other materials?

Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides.

Is there a guarantee?

Yes, always. There’s a 12-month guarantee on every job, wherever you are.

What is backing rod for?

The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.

Do you take out the old sealant first?

Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.

DIY sealant or a professional job?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.

Quotes for external mastic in Widford

For a quick quote, just ask. What matters most is:

  • How many areas need sealing
  • The number and length of the joints
  • When we can work, for business premises
  • Whether the work is at height

The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.

What to tell us for a quote

You don’t need to know the technical terms. It helps if you can tell us:

  • Access, such as stairs, a lift or height
  • Whether it has been sealed before
  • Roughly how big the job is
  • A few pictures by email, if you can

Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job