
Trusted Partnerships. Quality Work.
General contracting, also called the design-bid-build method, requires effective, trusted partnerships between the owner, architect, general contractor and all subcontractors.
Often used as the delivery method for public sector projects, general contracting and the design-bid-build method frequently come with an added level of accountability to the entity that is funding the project. At Ganneston, we know that this approach means it is even more important to have the project reliably completed on-time, on-budget and safely.
As general contractors, the Ganneston Construction team is dedicated to making your project a success.

What Do General Contractors in Maine Do?
Maine general contractors are construction professionals who oversee the day-to-day operations of a wide range of construction and renovation projects. They are responsible for ensuring that all aspects of the project are completed on time, within budget, and to the plans and specifications.
At Ganneston Construction, we handle all aspects of your project to ensure that it is completed on time, within budget, and to the highest quality standards.
If you are planning a construction project in Maine, it is important to choose a reputable and experienced general contractor like Ganneston Construction. Doing so will help to ensure that your project is completed on time and within budget. In addition, a good general contractor will be able to provide you with advice and guidance throughout the construction process.
We are a leading provider of new construction and renovation services, and we would be happy to assist you with your project.

Building Projects for Maine General Contractors Like Ganneston Construction
Maine general contractors oversee the construction or renovation of a wide range of buildings and structures.
Ganneston Construction has extensive experience in all aspects of building construction. We have built multi-family residences, office buildings, industrial structures, municipal buildings, schools, and more. We would be happy to assist you with your project from start to finish.
Metal Buildings
Versatile, cost-effective pre-engineered metal building systems are a popular choice for many types of non-residential structures, including warehouses, storage facilities, and commercial buildings. At Ganneston Construction, we have decades of experience in designing and constructing metal buildings.
Commercial Construction
Commercial structures, such as office buildings, retail stores, and public buildings, must meet specific requirements to be considered up to code. Our team is committed to ensuring your project is completed in the right way without compromising quality, cost, or safety.
Industrial Structures
Larger buildings, namely factories or other manufacturing and storage facilities, typically comprise the category of industrial structures. These buildings are often used for purposes such as:
- Warehousing
- Manufacturing
- Distribution
- Refrigeration or cold storage
- Data hosting centers
- Showrooms
- Biotechnology laboratories
- Research and development
Because these structures are larger and more complex than other construction projects, it is critical to work with a general contractor like Ganneston Construction who has the experience, expertise, and resources to successfully complete your project.
Multifamily Projects
While multi-family buildings are designed to house individuals, these construction projects are vastly different from single-home residential projects. Multi-family construction may include structures like apartments, condominiums, and townhomes.
Historic Renovations
We know that Northern New England features beautiful examples of historic architecture worth preserving. These buildings give us a glimpse into our pasts. Renovating them for reuse or repurposing allows us to help ensure that these historic buildings remain standing for years to come with all of the character and charm that comes with their history.
General Contractors License Requirements
The requirements to be a general contractor vary across states, towns, and municipalities. In Maine, here’s what general contractors need to operate.
By State
Unlike most states, Maine does not regulate general contractor licensing at the state level. Instead, licensing requirements are determined locally. While general contractor licenses are not generally required, general contractors must obtain a general business license; this regulation is also determined at the local level.
By Local Ordinance
In most cases, general contractors will need to obtain permits depending on where the construction takes place, which is handled locally.
Other Requirements
For Maine general contractors to operate, they should have sufficient general worker’s compensation and liability insurances, which protects them as well as their clients. Additionally, any construction project in Maine that exceeds $3,000 requires a written contract to protect all involved parties.
Questions to Ask General Contractors
When you are choosing a general contractor in Maine, it is important to ask the right questions. Doing so will help to ensure that you choose a reputable and experienced contractor who will be able to meet your project goals and complete your project on time and within budget. Here are some questions to ask:
- How long have you been in business?
- How many projects have you completed?
- Do you have experience with my type of project?
- Can you provide references?
- Do you have any licenses or certifications?
- Who is responsible for state, municipal and local approvals?
- What insurances do you have?
- What is your project management process?
- How do you select and manage subcontractors?
- How will you communicate with me during the project?
- What is your price structure?
- What is included in your price?
- Are there any additional costs that I should be aware of?
- What are your payment terms?
- What is your process for handling changes to the scope of work?
- When can you start the project?
- When do you expect to finish?
- What are the project milestones?
- Do you provide a warranty? If so, for how long?
These are just some of the questions that you should ask when choosing a general contractor in Maine. Asking these questions will help to ensure that you choose a reputable and experienced contractor who can complete your project on time and within budget.

Construction Quality Management for Contractors
For more than 50 years, we’ve established our reputation on the building blocks of integrity, safety, service, and quality. At Ganneston Construction, we take pride in delivering quality building projects that always meet your requirements and goals.
When it comes to quality management, we take all the necessary steps to ensure your satisfaction.
Clear Communication
Effective and clear communication is essential during a building project. It involves consistently updating each other and never assuming everyone has the same information. Being a good communicator also means being a good listener. We strive to keep you informed and hear out your ideas and concerns throughout the project.
Quality Assurance
We’re committed to delivering your project on time, on budget, and at the highest quality. To achieve this, we engage in quality assurance processes to verify that every aspect of your project meets our standards. As full-service general contractors, we’re able to handle the entirety of your project in-house, allowing us to ensure success.
Because of our commitment to quality, we’ve established a reputation for building safe, well-constructed, cost-effective structures for a wide range of projects.
Thorough Inspections
While we are confident in the quality of our work, we know how important it is to conduct thorough inspections at different stages of the construction process. Our team will inspect the site and structure to ensure that the project meets the plans and specifications so you have nothing to worry about.

The Ganneston Difference
Ganneston Construction is a woman-owned business with more than 58 years of experience, and we take pride in our reputation for quality workmanship and customer service. We are committed to providing our clients with the best possible experience from start to finish.
When you work with Ganneston Construction, you will work with our competent, dedicated team that is committed to your satisfaction and success no matter the scope of your project.
We are driven by our values of quality, safety, integrity, and ingenuity, providing all of our clients with the best general contracting services Maine has to offer.
Where We Work in Maine
We offer general contractors in Maine and New Hampshire. Here are the counties where we work in Maine:
- Androscoggin
- Aroostook
- Cumberland
- Franklin
- Hancock
- Kennebec
- Knox
- Lincoln
- Oxford
- Penobscot
- Piscataquis
- Sagadahoc
- Somerset
- Waldo
- Washington
- York
Frequently Asked Questions About General Contractors Near Maine and New Hampshire
What are general contractors?
A general contractor is the prime contractor responsible for managing the construction or renovation of a wide range of buildings and structures from start to finish.
How much do general contractors charge?
General contractors typically charge a percentage of the total project cost. The exact percentage will vary depending on the scope of work and the specific contractor.
What’s the difference between a general contractor and a construction manager?
The main difference is that the construction manager is brought into the process earlier during pre-construction to provide cost estimates at certain stages of the architect’s design development. This collaboration ensures that the final design is within the owner’s budget and meets other project goals.
Should I hire a construction manager or a general contractor?
Your choice depends on the scope of work, your needs, and your preferences. If you want a professional who will work on your behalf from the design to completion, hiring a construction manager may be the best choice.
No matter what your project is, Ganneston Construction will work with you every step of the way to ensure your satisfaction.
What’s the difference between a design builder and a general contractor?
A design builder is a professional who is responsible for both the design and construction of a project. You have one point of contact to lead your project from start to finish with as much input as you desire.
How can you find local general contractors?
There are a few different ways to find local general contractors. You can search online, ask for referrals from friends or family, or contact your local Chamber of Commerce.
If you are working on a multi-family residential or other building project in Maine, Ganneston Construction is here to help.
Contact us today.

Collaborate With Ganneston Construction General Contractors in Maine
Whether you are looking for a general contractor, construction manager, or design builder in Maine, look no further than Ganneston Construction. We are a full-service construction company that specializes in multi-family residential, commercial, and industrial construction. We have the experience and expertise to handle any size project, from renovations to new constructions.
If you are looking for a general contractor in Maine, contact Ganneston Construction today. We would be happy to discuss your project and provide an estimate.