A Local Family Run Double Glazing Business in Southend-on-Sea Since 1996

A Family Business Since 1996

We are a small family run business based in Shoeburyness, offering a personal, quality service in Southend-on-Sea and the surrounding area with over 40 years of experience.

We specialise in double glazing repairs and are able to source most parts to replace and fix most issues without the need for expensive new installations.


No Double Glazing Salesmen

As a small family business we can promise that our customers will never have to deal with any salesmen on our behalf and the person who undertakes your free initial consultation will be the person who does any work within your property.

What people say about Merlin

Contractor was punctual,polite, efficient and cleared up thoroughly every day. We had no complaints with the service at all.

Mrs Anita Dear

have used before for a small window repair was so realiable and did a good job went straight to them when required a replacement door and window.

Mrs Jenny Massey

I have used merlin maintenance before on a recommdation and I would recommend them

Mr & Mrs Butterworth

double glazing repairs image


Click Read More to see some examples of the Double Glazing repair services we offer

Read More
image to represent our double glazing portfolio


Please view our portfolio, showcasing some examples of our work

Read More
image used to link to our Merlin Maintenance Installations page


See what our customers have said about our work over the years

Read More

No Job Too Small !!!

We offer a free quotation for every single job. We are fundamentally a repair company and ensure all repairs are of the highest quality, whether it is 20 sealed units or just changing that pesky hinge that just won’t close.

We have developed strong relationships with many customers over the years, and we pride ourselves on covering every double glazing need our customers could want.

We offer the complete double glazing service, we take pride on delivering a personal service to our customers using over 40 years double glazing experience.

Why Choose Merlin?

  • Over 28 years’ experience
  • Fully guaranteed
  • No salesmen
  • References provided upon request
  • Small family business
  • Free estimates
  • Council Approved
fensa official logo fensa official logo

Secondary Glazing

There are many areas within Essex with strong conservation programmes. These include Southend, Leigh on Sea and Braintree. In such areas, local councils are sometimes reluctant to sanction double glazing due to its impact on the appearance of period and listed buildings.

In such circumstances, secondary double glazing is an ideal solution. It provides noise and thermal insulation, reduces CO2 emissions, saves on heating bills and yet doesn’t compromise the appearance of the building.

We offer a quality Secondary window system, which is aluminium with its own sub-frame and comes in various colours. A good system should look like it is supposed to be there and not that it has just been screwed on.