Certified Electricians | Bedford, Bedfordshire

About Mainspark

Passion. Experience. Diligence.



MainSpark Electrical Solutions is a family run business based in the heart of Bedford founded by Karl Mastrolacasa, a trusted Electrician with over 20 years of experience in the trade.

Committed to ensuring that our customers experience is nothing but positive and straightforward, we pride ourselves on always providing professional service from the very first point of contact all the way through to completion of works.

As an NICEIC Approved Contractor our customers can have peace of mind that all electrical work carried out by us is fully insured, carried out to recognised industry standards and fully complies with current guidelines and regulations.

Serving the people of Bedford and surrounding areas, our repeat custom and recommendations are proof that not only is our work completed to the highest standard but that we as a company are trustworthy, reliable and professional.

With all aspects of Domestic and Commercial work undertaken, we always commit to leave your property clean and tidy. Whether your requirements be small or extensive, we provide free no obligation estimates and strive to provide you with all the information you will require prior to commencement, this ensures you are confident that any works we carry out are necessary to your budget, needs and specifications.


Get in touch

Here at Mainspark we know that finding the electrician is a choice not to be taken lightly. That’s why we offer free consultations to walk you through your needs, the scope of your goals, and your budget.

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karl Mastrolacasa


experienced electrician working in the industry for over 20 years 

Karl has enjoyed over 20 years in the Electrical Industry during which he has gained a loyal following of clients and continuous recommendations. The secret to Karl’s success is passion…not just for electrics but also for service, he will always ensure his clients’ needs are at the forefront of every job he undertakes. Instead of blindsiding clients with technical jargon that can be hard to understand, Karl always explains things clearly and simply so that his clients can make decisions with the peace of mind that they have full knowledge of what is required and why.

From apprentice to founder of MainSpark Electrical Solutions, Karl has always taken pride in his work whether it be small installations or full rewires. Clients can be assured that not only will you receive first class service and workmanship but your property will be left clean and tidy.

In his spare time, Karl has a love for cars, particularly the classics and is always busy either under a bonnet or taking on D.I.Y projects. When he does sit still Karl enjoys watching films of all kinds. A Husband and a Dad to 2 beautiful girls, Karl was eager to put his own stamp on the Electrical Industry and create a successful business that his family could be proud of!

Together with his Wife Kimberley, Karl has catapulted MainSpark Electrical Solutions from an idea on paper to the huge success it is today!