Exterior Construction

new deck and pergolaIn Colorado, outdoor living is a must. Mark Hammer Construction can bring you livable space outside with decks and pergolas, gazebos and a hot tub, or build a sidewalk, a shed, or even a garage.

If you know you want  an outdoor living space but don’t quite know what you want, we can help. With years of projects under our belt we have done most everything. We’ll sit with you and ask questions about your needs and wants. We will find out what you want to use your space for and how much time you have to maintain it. We can then advise you on what would best suit your lifestyle and budget.

Itemized quotes are provided up-front. We will price out your nearly maintenance free dream deck and a budgeted alternative that may require a little more love and attention so you can decide how to best spend your money.

Quality is the most important part of building a structure that will be outside all its life. Years of experience building in Northern Colorado have shown us which products and practices will stand up the longest with the least maintenance.  Our exterior structures, at a minimum, are built to withstand the high winds, the heavy snow and the endless days of beautiful sun we get in Northern Colorado. We take extra care and use only the best pressure treated lumber to withstand the elements. We will put rubberized tape over the tops of your deck joists to help keep them dry and lasting years longer than most decks. Structural screws rather than nails help keep your deck, gazebo or pergola tight  and strong and will help minimize warping of lumber. Extra effort is spent where the deck or patio connects to your house to ensure that the integrity of your home is maintained at this exposed spot. While working on your exterior project, we will assess the drainage and grading and advise you of changes that might be needed to help preserve your new outdoor space and possibly your home.


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We love animals and kids and want them to continue to be able to enjoy the outside while we work. If it’s necessary, we will help set-up a temporary fence to keep pets in but away from the construction site. We keep a clean safe project and love to get to know your furry family members and kids.  We can be responsible for opening and closing the gates and doors so animals and kids stay where they are supposed to be, or can get out for a potty break.

Outdoor or exterior construction consists of, but is not limited to:

  • decks
  • patios
  • gazebos
  • siding
  • detached garages
  • barns
  • horse stalls
  • painting
  • pergolas
  • gutters

References for exterior construction are available.