Book your Provisional BER today

Building your dream home and you require a provisional BER, Part L Compliance Report and full energy design specification. Book and pay online today to avail of our special online booking rate!

McGann Energy Consultants are the Number 1 all-round Energy Consultancy Company for Building Energy Ratings (BER), Building Regulation Part L Consultancy Services and NEZEB specification for both domestic and commercial developments.

We are also an Irish Distribution Agent for Hitachi Heat Pumps providing a one stop shop for the Irish house builder, whether it be a one-off self build project or a large development we can provide a package to ensure you meet compliance with the current NZEB Building Regulations Part L 2019



Our team have been involved in this industry since 2009 when the building energy ratings and retrofit government grants were first introduced to Ireland. We have worked with all of the main industry stakeholders on various projects from one-off private homeowners to large government funded energy upgrade projects. As part of our experience we have worked on behalf of the the main admisitrators and government agencies on grant funded projects as surveyors, designers, inspectors, auditors and BER assessors. The experience that our team have is second to none. 

Our Services

Domestic Building Energy Rating Certificates for Existing Homes

Commercial Building Energy Rating Certificates

Provisional BER Calculations and Part L Specification

Nearly Zero Energy Build (NZEB) Design Consultancy

New Build Final BER Certificates

Retro Fit Design and Consultancy

Part L Major Renovation design and Consultancy

SEAI Heat Pump Technical Assessments

Retro Fit S.R.54:2014 Quality Control Inspections

Contact us now for a quote on 01 9120880

Selling your property and need a BER

McGann Energy Consultancy

Since January 1st 2009, all homes for sale or rent must have a BER certificate. The energy rating helps the prospective buyer/renter estimate the energy cost of running the home. This is a requirement regardless of when the property was built.  There is no pass or fail mark but you must have a rating. At McGann Energy Consultants we will provide you with a rating quickly and efficiently.

Does a BER rating have to be recent?

A BER rating from McGann Energy Consultants is valid for 10 years. If you are selling or re-letting your home outside this timeframe you will need another assessment and rating. The BER rating must be in date.

Advantages of a recent BER rating?

While you may have a rating from 8 years ago that legally is still valid, a potential buyer might like to see a more recent rating. It gives the buyer comfort to know the rating was recent and is an accurate representation of the current energy efficiency of your home. 

Our customers say it best…

Thomas Delaney


Really positive experience working with Barry. Process was very stress-free as he provided a clear structure of the BER requirements, and flagged anything that needed to be addressed in advance. A really organised approach, Barry is extremely quick to respond to mails and turns any documents around within a short space of time. Would have no problem recommending him – thanks again Barry!

Alan Eagle


Barry McGann was recommended to me by my architect and I have benefited greatly as a result. Barry is professional, Knowledgeable and was easy to contact when I needed questions answered. Barry gave me valuable information, regarding my insulation, windows, doors, that ultimately saved me from making the wrong choice. His knowledge of the Building Regulations has helped me build my dream home without stress or worry. I would be happy to recommend Barry, it was money well spent, not something I can say everyday.

Garret O'Sullivan


I cannot recommend McGann Energy Consultants highly enough. We hired Barry and his team to carry out our Provisional BER Calculation and act as our Part L consultant to ensure that we made no mistakes that could affect compliance with these regulations. As self Builders we were worried about the unknown. Barry and the team at McGann Energy Consultants Ltd made the process so simple and stress free. They were always available to take a phone call or reply to emails. I would recommend that anyone building their new home to avail of this brilliant service for peace of mind.